Pentaether
五醚, 四甘醇二丁醚
🗣️ 情景例句
Philip, why don't you go
Philip 你何不去
Often and little eating makes a man fat.
少吃多餐，身强体胖。
Paw prints were seen in a number of places and puma fur was found clinging to bushes.
在许多地方看见爪印，灌木丛中发现了粘在上面的美洲狮毛。