Constant acceleration
[机] 等加速度
🧩 词语组成解析
🗣️ 情景例句
Let's go.
我们走吧。
Perhaps not so.
也许不这样。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。