Ocean trench
海沟
🧩 词语组成解析
ocean
['oʃən]
n. 洋;海洋;大海;（地球上划分出的）洋;
🗣️ 情景例句
I'll have no problem.
我不会有问题。
But the market prices are changing frequently.
但是市场价格随时都在变化。
They are paid by the hour.
他们按时取酬。