Redbug
n. [动] 沙蚤
✅ 同义词
🗣️ 情景例句
Where are the shopping carts?
购物车在哪儿？
No gains without pains.
不劳无获。
and we know something of the great variety of the sea bed's topography.
而且我们对海底地形的千变万化也有了一定的了解。