Polycyclic hydrocarbon
[机] 多核烃
🧩 词语组成解析
a. 多环的\\n[医] 多环的
🗣️ 情景例句
Carl, does your throat hurt?
Carl，你喉咙痛吗？
Good things come in pairs.
好事成双。
He marked all the bees that came to the nearby feeding place blue, and all the bees that went to the faraway place were marked red.
他把所有飞来近处喂食点的蜜蜂标上蓝色，飞往远处喂食点的蜜蜂标上红色。