Nonamethylene
[化] 1,9-亚壬基
🗣️ 情景例句
And don't forget to invite Susan for dinner.
别忘了请Susan来吃晚餐。
How would I know?
我怎么知道？
Of course. You may find these rather expensive.
当然。不过这些衣服你可能觉得相当贵。