知识扩展
词源考究 来自clear，清楚的，解决了的。

中文词源： clearance 许可，兑现 来自clear,清楚的，解决了的。 clearance
精选例句

常见考点例句：

Perhaps a user might want to download a tv game from google 's android market without requiring clearance from sony .

而用户在从google的androidmarket下载电视游戏时，也不必从sony清除。

Will you take these to the clearance counter ?

你要带这些去通关柜台吗？

Given the apparently excessive size of the clearance and the eccentric choice of route , some detect a stink of corruption in the smoky air .

从过分的的间隙和奇怪的线路来看，有些人看出来，暗地里有腐败行为在其中。

A leaked instruction from the french government to the police orders the clearance of 300 camps in three months , the roma ones " a priority " .

法国政府向警方发出的一项指令最近被泄露出来：三个月内必须清除300个非法聚居地，优先清理罗姆人聚居地。

But over the years , researchers say , what has become known as the amyloid hypothesis - the notion that overproduction or reduced clearance of amyloid beta is a cause of the disease and blocking amyloid beta could stop it - dominated their thinking .

但数年来，科学家说众所周知的淀粉样蛋白假说认为淀粉样蛋白生产过剩或者清除不足是病因而且阻止淀粉样蛋白的合成可以治愈该病已经主宰了他们的思想。