Polyadenylic acid
多（聚）腺苷酸
🧩 词语组成解析
🗣️ 情景例句
I never bother servicing my own car, it's too much trouble.
我从来都不自己修车的，麻烦死了。
Kill two birds with one stone.
一石双鸟；一箭双雕。
Already, orientals and Asian Americans constitute the majority of the engineering staffs at many Valley firms.
硅谷许多公司中工程技术人员的大多数是东方人和亚裔美国人。