Backcountry travel may involve travel over both trails and off - trail areas.野外行进包括在小径上和小径以外通过....a large area of woodland with hiking and walking trails.间有远足与散步路线的一大片林地The mountains resemble anthills then, with crowds s...

n.脆弱( frailty的名词复数 )，虚弱，（性格或行为上的）弱点，缺点...

rails的音标：rails的英式发音音标为：['reɪlz]rails的美式发音音标为：['reɪlz]...

n.（自行车）变速器，装有变速器的自行车...

This is a reflection of their frailty.这是他们虚弱的反映.Do you look forward to old age, or do you dread frailty, loss of memory and dependence on others?你是期望变老，还是害怕自己年迈体衰、记忆减退，而且还要依赖他人？Despite increasing physical frailty, he con...

handrail的音标：handrail的英式发音音标为：['hændreɪl]handrail的美式发音音标为：['hændˌrel]...

vt.& vi.出轨vt.使（火车）出轨，使脱轨...

derail的一般过去时为：derailed...

Tanks raise huge trails of dust when they move.坦克开动时扬起大量尘土。Police dogs have good noses for following criminals'trails.警犬的嗅觉对罪犯留下来的痕迹特别敏锐.Be bold in putting things into practice and blazing new trails.勇于实践,大胆创新....

brail的一般过去时为：brailed...

engrail的现在进行时为：engrailing...

The sudden onset of winter caused havoc with rail and air transport.冬天的突然降临让铁路和航空运输系统陷入混乱。The president traveled by rail to his home town.总统坐火车回到了他的家乡。The gloom deepened after a thumping £45m loss at British Rail.英国铁路公司遭...

vt.跟踪，追踪，拖曳：让…拖或飘扬在后面，拖沓而行，跟在…后面vi.（在比赛等中）输，（尤指跟在他人后面）疲惫地走，（在比赛或其他竞赛中）落后，蔓生n.足迹，臭迹，小径，一缕...

...the frailties of human nature.人性的弱点The Gestapo knew well how to exploit all the human frailties of their victims.盖世太保很清楚地知道怎样去利用他们准备杀害的人的人性弱点.It is a great relief to allow us ourselves the luxury of acknowledging our ...

rail的音标：rail的英式发音音标为：[reɪl]rail的美式发音音标为：[rel]...

This obviously derails the forward - momentum process.很明显这是前进途中的一大障碍....

trail的一般过去时为：trailed...

railing的音标：railing的英式发音音标为：['reɪlɪŋ]railing的美式发音音标为：['relɪŋ]...

adj.被牵引的v.（使某物）被拖在后面( trail的过去式和过去分词 )，跟踪，追踪，（在比赛等中）输，（尤指跟在他人后面）疲惫地走...

trailer的第三人称单数（三单）为：trailers...

I say the railroading problem is insurmountable.我说铁路运输问题是克服不了的.He bowed out as train engineer after forty years of railroading.他退休了,他已当了40年的铁路技师.Ball bowed out after 40 years of railroading.鲍尔在铁路上工作了四十年以后退休了....

adj.边上有一圈突起小点的； （纹章等）边缘锯齿形的v.使成锯齿状( engrail的过去式和过去分词 )...

The railroad finally reached Santa Barbara in 1877.铁路终于在1877年修到了圣巴巴拉。Bridges over railroad tracks root danger out in crossing.铁轨上空的天桥排除了穿行中的危险.The railroad connects two cities, namely, New York and Chicago.这条铁路连接两个城市, 即纽...

engrail的一般过去时为：engrailed...

rail的现在进行时为：railing...

trail的现在进行时为：trailing...

Dozens of miles of railway track have been torn up.好几十英里的铁轨被毁坏了。The railway station smelt powerfully of cats and drains.火车站上有冲鼻的猫味和臭水沟味。Across the river the railway track ran up to the pithead.铁轨跨过这条河直达矿井口。...

trailing的音标：trailing的英式发音音标为：['treɪlɪŋ]trailing的美式发音音标为：['treɪlɪŋ]...

I'd cursed him and railed at him.我曾诅咒并且大声责骂过他。The cliff edge is dangerous and should be railed.崖边危险,应该用栏杆围起来.They have railed the meadows off from the new railway cutting.他们已用栏杆把草地和新铁道的路堑隔离开来....

entrails的复数形式为：entrails...