🧩 词语组成解析
river
['rivə]
n. 河，江;溪，巨流;
gum
[ɡʌm]
n. 口香糖;树胶;黏胶;牙龈;
vt.& vi. 胶合;涂以树胶;使…有粘性;
🗣️ 情景例句
But it is not polite to ask older people their age.
但问老人的年龄是不礼貌的。
When the accident happened, I was cleaning the car.
当意外事故发生的时候，我在清理汽车。
Nice to meet you.
很高兴见到你。