Isogredient
等梯度线
🗣️ 情景例句
When does he arrive?
他什么时候到？
Two ears to one tongue, therefore hear twice as much as you speak.
两只耳朵对一舌，故应多听而少说。
My wife always worries too much.Who's going to look after the dog?
我妻子总是担心那的。谁来照看狗啦，