Semilattice
半格點
??? 情景例句
We will help your children in learning lessons in their free time.
我們可以幫助您的孩子在他們空閑時學習功課。
Slowly, mountains are worn away by the wind.
山體逐漸被風化了。
What are your plans for the weekend?
你周末計劃做什么？