C-ras
[医]原癌基因
🧩 词语组成解析
[计] 行地址选通
🗣️ 情景例句
Smoking is bad for your health.
吸烟对你的健康有害。
I know the boy whose father is a guide.
我知道那个男孩的父亲是导游。
and at the most critical juncture we took turns in watching that point.
在最紧急的时刻，我们轮流监视那段河流的险情。