Polytyrosine
[化] 聚酪氨酸
🗣️ 情景例句
Well, in 1919.
是的，在1919年。
That's too late.
那太迟了。
Oil rigs have to be repaired frequently and divers,who often have to work in darkness a hundred feet under water,
钻井平台需要经常修理，潜水员常常要在水面100英尺以下摸黑工作，