Jackbar
钻机支柱
🗣️ 情景例句
Having their origins in China, chopsticks are used in many Asian countries.
筷子起源于中国，现在很多的亚洲国家都使用它。
Which one is heavier?
哪一个是较重的？
I find listening really hard. Sometimes it's just impossible to understand.
我觉得听力很难。有时简直听不懂。