predator n.食肉动物；奴役他人者(尤指在财务或性关系方面)

necessitate vt. 使……成为必要, 需要

Your proposal necessitates borrowing money.
你的提议使借款成为必要。

colossal adj. 巨大的

Some of the tall buildings in that city are colossal.
那座城市里的高层建筑很庞大。

deposit vt. 放置; 放下

He deposited the books on the desk.
他把书放在桌子上。

存放; 交与…保管

He's deposited quite a lot of money recently.
他最近存了不少钱。

付订金

He deposited a small amount of money toward the purchase of the car.
他为买这辆汽车先付了少量订金。

silt n. 淤泥, 淤滓vt. & vi. (河流等)为淤泥淤塞

Mud and silt have been continuously deposited in the lake.
泥沙不停地淤积在这湖里。