Pentanedioic acid
[化] 戊二酸
🧩 词语组成解析
🗣️ 情景例句
It's extremely good of you to do this for me.
你帮我做了这件事，真是太好了。
When will the contract be ready?
合同何时准备好？
Sorry! It's not a very good line. Could you speak more clearly, please?
对不起！电话线路不太好。你能说清楚一些吗？