Heptanedioic acid
[化] 庚二酸
🧩 词语组成解析
🗣️ 情景例句
No, just Max. I like that.
没有， 就是Max。我喜欢这样。
I'll need an economy ticket with an open return.
我要一张经济舱，回来时间不定的来回票。
I find listening really hard. Sometimes it's just impossible to understand.
我觉得听力很难。有时简直听不懂。