Velocity variation
[电] 变速
🧩 词语组成解析
🗣️ 情景例句
It's important
这是很重要的
My father is over 60 years old.
我父亲已年过六十了。
It took great imagination as well as patience for Annie to teach me to speak.
教我说话需要极大的想像力和耐心。