Perioidic system
[机] 周期系
🧩 词语组成解析
🗣️ 情景例句
The Molinas are a large family.
Molina家是一个大家庭。
Feed a pig and you'll have a hog.
种瓜得瓜，种豆得豆。
All the bees that had been at the distant feeding place were doing a completely different dance, a wagging dance.
所有在近处点的蜜蜂在跳一种完全不同的舞蹈，一种摇摆舞。