🧩 词语组成解析
🗣️ 情景例句
Is something the matter, Grandpa?
怎么了，爷爷？
It's a hard job, but I hope he can make it.
这不是件容易的差事，但我希望他能做到。
It is thought that they arrived more than 30,000 years ago by crossing a land bridge from Asia to America.
他们被认为是在3万多年以前从亚洲跨越一座陆桥来到美洲的。