Aldehydene
乙炔
🗣️ 情景例句
to plan the refurnishing of the old library
计划重新整修老图书馆
I ought to go to bed now.
我应该现在去睡觉。
and you can be sure that none of our five advisers would have suggested sinking all(or perhaps any) of your money into Periwigs.
可以相信5位经纪人中不会有人建议你把全部（或一部分）资金投入佩里威格斯公司。