🧩 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
and I do mean welcome home.
我真心欢迎你们回来。
The doctor said it's just a slight infection, There's nothing to worry about.
医生说只是轻微的感染，不需要担心。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？