Isogredient
等梯度线
🗣️ 情景例句
You don't need to do that, Grandpa.
你不用这样，爷爷。
We pitied the family in their sudden unhappiness.
那家人遭受突然的不幸，我们深感同情。
Let's imagine a hypothetical case where we disagree.
让我们假设一个我们不同意的状况。