🧩 词语组成解析
n. 交通设施, 通讯系统
🗣️ 情景例句
How much do I owe you?
我应付你多少钱？
Young man may die but old men must die.
年轻人可能会死，老年人难免不亡。
Some of this heat near the earth's surfact is used to make electricity.
靠近地表的一部分热量已被用来发电。