Sers
表面增强拉曼谱仪
🗣️ 情景例句
My mother doesn't mind who comes to stay, she's very easy-going.
我母亲不在乎有什么人来往，她十分随和。
We should weep for men at their birth and not a t their death.
我们应在人降生时流泪，而不该在人死亡时哭泣。
She entered the station twenty minutes before the train was due,
在火车进站20分钟前她就进了车站。