Concept learning
[计] 概念学习
🧩 词语组成解析
🗣️ 情景例句
I'm sorry, but I've got to be on my way.
很抱歉，我必须走了。
The father buys,the son bigs,the grandchild sells,and his son thigs.
父买、子修建、孙儿卖，重孙街上当乞丐。
I had traced the cause of the trouble.
因为我找到了毛病所在。