Fluorchrome
荧光色素
🗣️ 情景例句
My wife died four years ago.
我妻子四年前去世了。
To strive, to seek, to find, and not to yield.
要奋斗，要探索，要有所发现，而不要屈服。
I regret to inform you that we are unable to offer you employment.
很遗憾地告诉你，我们无法雇用你。