predator n.食肉動物；奴役他人者(尤指在財務或性關系方面)

necessitate vt. 使……成為必要, 需要

Your proposal necessitates borrowing money.
你的提議使借款成為必要。

colossal adj. 巨大的

Some of the tall buildings in that city are colossal.
那座城市里的高層建筑很龐大。

deposit vt. 放置; 放下

He deposited the books on the desk.
他把書放在桌子上。

存放; 交與…保管

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

付訂金

He deposited a small amount of money toward the purchase of the car.
他為買這輛汽車先付了少量訂金。

silt n. 淤泥, 淤滓vt. & vi. (河流等)為淤泥淤塞

Mud and silt have been continuously deposited in the lake.
泥沙不停地淤積在這湖里。