Arsonoacetic acid
[化] 胂羧基乙酸
🧩 词语组成解析
🗣️ 情景例句
The number's no longer in service.
这个号码现在是空号。
One good turn deserves another.
以德报德。
4 Think of a time when you were happiest. What were you doing?
4。想一想你感到最高兴的时刻。当时你在做什么？