Altruists
(altruist 的复数) n. 利他主义者, 无私者
🗣️ 情景例句
I've got a terrible headache and I feel really sick today.
我头疼得厉害，今天觉得很恶心。
The mill cannot grind with the water that is past.
覆水难收。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）