n.啟門；開啟

A section of a waterway, such as a canal, closed off with gates, in which vessels in transit are raised or lowered by raising or lowering the water level of that section. 水閘用門關住的水道的一部分，如運河。其中通過升高或降低這部分的水位可以抬升或壓低運輸中的船只

The removal of the government's official limits on pay increases has opened the flood gates for a rush of demands for higher wages. 政府取消了對加薪的官方限制，這就是為驟然而來的要求增加工資的潮水打開了閘門。

Water went rushing through the lock gates. 水流經水閘時十分湍急。

They open the sluice gates of reservoir. 他們打開水庫的閘門。

v.調查；研究

v.冒稱；霸占；擅自

v.繁殖；增殖；傳播；傳送

n.后檔板；下閘門

v.緊跟著前車行駛

延伸

vt.減輕；緩和