update grow bitcoin qa (#3126)

docs/website/pages/learn/miscellaneous/grow-bitcoin.en-US.mdx

@@ -44,7 +44,11 @@ Only needs to ensure that the UniSat wallet has UTXO and [Claim RGas](https://po
 
 RGas is the native gas token on the Rooch Network and is used to cover transaction and operating costs.
 
-#### The account has BTC but no UTXO
+#### What is UTXO?
+
+UTXO is the unspent transaction output (Unspent Transaction Output). UTXO represents the change of BTC. The BTC balance of an account is the total of all UTXOs under the account.
+
+#### The account has BTC but UTXO is not displayed
 
 BTC transfer transactions need to wait for three blocks to be confirmed before UTXO can be used in Rooch.
 
@@ -96,14 +100,20 @@ There is no limit on the number of times, you can claim as long as you have stak
 
 About 0.02 ~ 0.03 RGas.
 
-#### Babylon Stakes
+#### Babylon Staking
 
 The same UTXO cannot be Self-Staking and then staked on Babylon.
 
 You need to stake in Babylon first, and then stake via Babylon Stake Seal.
 
 Babylon's staking has a time lock, and its staking has time weight.
 
+> Due to the time weight, the same amount of BTC will earn more GROW on Babylon Staking than on Self Staking.
+
+#### When using Babylon Staking, will the time weight become invalid after unstaking?
+
+Won't. Staking on Grow Bitcoin still has time weight as long as BTC is locked on the Babylon platform.
+
 #### Does Rooch have a price oracle?
 
 There are currently oracles for Bitcoin.
@@ -136,6 +146,10 @@ A new Bitcoin address can `Claim` RGas once.
 
 Taproot.
 
+#### I accidentally deleted the address bound to X, how to retrieve it?
+
+As long as the mnemonic phrase is not lost, it can be retrieved. The same mnemonic word creates multiple account addresses. The address of account 1 is a, and the address of account 2 is b. Even if all addresses are deleted and re-created with the same mnemonic, the addresses will still be a, b...
+
 #### Where GROW trades
 
 GROW’s trading market will be launched in the future.
@@ -157,10 +171,6 @@ If this problem occurs, please transfer BTC to your account once.
 
 Please get the `seed` role in the `contributor-role` channel.
 
-#### The account has BTC but no UTXO
-
-BTC transfer transactions need to wait for three blocks to be confirmed before UTXO can be used in Rooch.
-
 #### Which version of Bitcoin testnet is Grow Bitcion using?
 
 The Grow Bitcion testnet uses the Bitcoin `test3` testnet.

docs/website/pages/learn/miscellaneous/grow-bitcoin.zh-CN.mdx

@@ -44,7 +44,11 @@ Session Key 的详细描述请参考这篇文档 https://rooch.network/zh-CN/lea
 
 RGas 是 Rooch 网络上的原生 gas 代币，用于支付交易和运营成本。
 
-#### 账户有 BTC 了但是没有 UTXO
+#### 什么是 UTXO？
+
+UTXO 即未花费的交易输出（Unspent Transaction Output），UTXO 代表 BTC 的找零，一个账户的 BTC 余额为账户下的所有 UTXO 相加的总额。
+
+#### 账户有 BTC 了但是没有显示 UTXO
 
 BTC 转账交易，需要等待三个区块确认后，`UTXO` 才可以在 Rooch 中使用。
 
@@ -96,14 +100,20 @@ GROW 总量为 `210,000,000,000`，`180` 天挖完。
 
 大约 0.02 ~ 0.03 RGas。
 
-#### Babylon Stake
+#### Babylon Staking
 
 同一个 UTXO 不能 Self Staking 然后再到 Babylon 上 Stake。
 
 需要先在 Babylon stake，然后通过 Babylon Stake Seal 来 Stake。
 
 Babylon 的质押带有时间锁，它的质押具有时间权重。
 
+> 由于具有时间权重，等量的 BTC，在 Babylon Staking 上获得的 GROW 要比 Self Staking 多。
+
+#### 使用 Babylon Staking，解质押后再次质押时间权重是否会失效？
+
+不会。只要 BTC 还锁定在 Babylon 平台，那么在 Grow Bitcoin 质押仍然具有时间权重。
+
 #### Rooch 有价格预言机了吗
 
 目前有 Bitcoin 的预言机。
@@ -136,6 +146,10 @@ Babylon 的质押带有时间锁，它的质押具有时间权重。
 
 Taproot。
 
+#### 误删了绑定 X 的地址，如何找回？
+
+只要助记词没有丢，就可以找回。同一个助记词，创建出多个账户地址，账户 1 的地址是 a，账户 2 的地址是 b。即便把所有地址都删除了，用同样的助记词重新创建，地址也是 a，b……
+
 #### GROW 在哪里交易
 
 后续将推出 GROW 的交易市场。
@@ -157,10 +171,6 @@ Taproot。
 
 请在 `contributor-role` 频道获取 `seed` 角色。
 
-#### 账户有 BTC 了但是没有 UTXO
-
-BTC 转账交易，需要等待三个区块确认后，`UTXO` 才可以在 Rooch 中使用。
-
 #### Grow Bitcion 使用的是哪个版本的 Bitcoin 测试网
 
 Grow Bitcion 测试网使用的是 Bitcoin `test3` 的测试网。