Eaca
[化] 6-氨基己酸
🗣️ 情景例句
How is this meat dish prepared?
这道肉菜是怎么做的？
I phoned him last Saturday.
我上个星期六打电话给他。
Even if a piped water supply is safe at its source,
既使管道供水系统在水源处是安全的，