Isoster
等容线
🗣️ 情景例句
Can you give me a hand with my homework?
你能帮忙教我做家庭作业吗？
We've no problems.
我们没有问题了。
We are lucky in that only the lower fields, which make up a very small proportion of our farm, are effected by flooding,
值得庆幸的是，只有低洼的受到洪水影响，而低洼地在我们农场比例很小。