Tributaries
n. 支流( tributary的名词复数 ); 进贡国; 附庸国; 进贡者
🗣️ 情景例句
I know the owner very well.
我和老板很熟。
That's fine. What time do I have to be at the airport?
好的。我应该几时到达机场？
Check the prices before you decide whether to buy one.
先把价格核对一下，再决定该不该买。