Polythioester
[化] 聚硫酯
🗣️ 情景例句
That's right.
你完全正确。
How long have you lived here?
你住在这里多久了？
One authority on spiders made a census of the spiders in grass field in the south of England,
一位研究蜘蛛的权威对英国南部一块草坪上的蜘蛛作了一次调查。