Dioolymer
二聚物
🗣️ 情景例句
It's time we hired a secretary to answer the phones.
我们早就该请一个秘书接听电话了。
I have no choice.
我别无选择。
After a short time a line of bees fly to and from the hive like a thin stream.
过不了一会儿，一队蜜蜂像一条小溪一样在蜂箱和喂食点之间来往飞行。