Prettiest
adv. 极美（pretty的最高级）
🗣️ 情景例句
In general, my reaction is favorable.
总之，我的反应良好。
You are thinner than I am.
你比我廋。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。