Ethyloic-
[化] 羧甲基; 侧链上的羧甲基
🗣️ 情景例句
I do mean it.
我的确是说真的。
Where do you want us to put the couch?
你想让我们把沙发放到哪里？
They had just had enough time to swim out of danger when the boat again completed a circle.
他们刚刚来得及游出危险区，快艇就又转完了一圈。