Schlieren
条纹照相, 暗线照相, 纹景法, 纹影法
🗣️ 情景例句
I have just one--playing golf. It's expensive, but it's a lot of fun.
我只有一种爱好，打高尔夫球。花费很高，但非常有趣。
How many pieces are you going to take?
你要拿几支？
I know how you feel.
我知道你的感受。