Pentacetate
五乙酸盐
🗣️ 情景例句
I sold it to the present owners.
是我把它卖给了现在的主人。
I asked him to do it for me, but he wouldn't.
我请他帮我做，但是他不肯。
Please forgive me for not writing to you.
原谅我没有写信给你。