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[化] 二甲基二硫代氨基甲酸钠
🗣️ 情景例句
about your math teacher or your math homework.
你的数学老师或你的数学作业。
No man ever became thoroughly bad all at once.
从来没有骤然变得极坏的人。
It is thought that they arrived more than 30,000 years ago by crossing a land bridge from Asia to America.
他们被认为是在3万多年以前从亚洲跨越一座陆桥来到美洲的。