Octynoic acid
[化] 辛炔酸
🧩 词语组成解析
🗣️ 情景例句
I fell in love with him at first sight.
我对他一见钟情。
I had never seen a grown man break down and cry.
我从未曾看到过一个这么强壮的汉子痛哭失声。
Last Sunday I got up very late.
上个星期天，我起得很晚。