Concentrations
n. 集中( concentration的复数形式 ); 专心; 关注; 浓度
🗣️ 情景例句
When you see something, think of the English word for it.
当你看到一个东西时，就想到它的英文单词。
Do not cut down the tree that gives you shade.
不要忘恩负义。
I have known very few writers, but those I have known,
我所认识的作家寥寥无几，然而凡是我所认识