Some roads have become impassable at certain times of the year.

有些道路在每年特定的时期无法通行。

Many roads leading to some of the worst hit areas remain impassable.

数条通往受灾最严重地区的道路仍无法通行。

The dogs also train on helicopters because roads might be impassable in a disaster.

灾难过后道路可能会无法通行，因此搜救犬还需要接受直升机上的相关训练。

The main road between Port au Prince and here was impassable as early as yesterday.

在昨天以前，太子港和这个地区之间的主要道路还不能通行。

Scores of area roadways are impassable or damaged by flooding across the Rocky Mountain foothills of Colorado.

洪水席卷州落矶脉丘陵地，地区的道路已经无法通行或者是被洪水破坏。

Bermudan police administer says many roads are impassable after Hurricane Gonzalo crossed over the British territory overnight.

百慕大的警察局长称，飓风Gonzalo在一夜之间横扫英国领土，导致道路无法通行。

Save the Children said roads were impassable because of the rising flood waters, and helicopters have been grounded.

救助儿童会表示，一些道路已经完全无法通行，因为洪灾造成水位上升，直升机也停飞了。

It was surrounded by almost impassable forests, and Alfred fortified the place so that it could not well be taken.

四周都是密林，难以通过，加之阿尔弗雷德构筑了防御工事，因此易守难攻。

But you haven't come up against too many impassable barriers.

但你们还没碰到什么不可逾越的阻碍吧。

Tioga Road is impassable between October and May, but as the snow clears, the road reemerges, rising into the rugged Sierra Nevada high country.

提奥加路在 10 月至翌年 5 月 不予通行，待积雪溶尽后，小路浮现眼前，则可您步往崎岖不平的内华达脉高地。

When it rains in central Montana, the dirt roads turn into what the locals call " gumbo, " a slick clay-mud that often is impassable.

蒙大拿州中部下雨的时候，布满尘土的路面就会变成当地人口中的gumbo，意思是湿滑的无法通过的路。

" No. And the fords will be impassable" . She tried to remember. " If we cannot cross the Blue Fork, we'll have to go around it, through Sevenstreams and Hag's Mire" .

" 没有。而且看目前的架势，渡口想必统统无法运行。" 她想了想，" 我们过不了蓝叉河，便只好绕过去，经过七泉和女巫沼泽。"