Donovan's solution
[医] 杜诺凡氏溶液, 碘化汞砷溶液
🧩 词语组成解析
🗣️ 情景例句
No. He left a note on the door
是的。他留了一张条子在门上
Old birds are not caught with new nests.
新巢捉不到老鸟。
The six students put their closed hands in front of them.
6个学生将握紧的手放在前面。