Protobiochemistry
[化] 原始生物化学
🗣️ 情景例句
I invited her to come by for dessert.
我邀请她来吃甜点。
What excuse could he have for being so rude?
他做了那样无理的事，将如何辩解呢？
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）