🧩 词语组成解析
a. 生物地理学的
🗣️ 情景例句
when Susan and Richard were babies?
当Richard和Susan还很小时?
How much does that typewriter weigh?
那台打字机重多少?
This factory opened in 1989. We make many kinds of useful things here.
这家工厂是在1989年建成的。 我们制造许多有用的东西。