Artificial villages hardened like scabs over the landscape in Iraq and Afghanistan.

在伊拉克和阿富汗，人工村庄像结痂一样坚硬地覆盖着大地。

Alice did so. 'It's very hard, ' she said, 'but how does that explain it? '

丽丝照办了，接着说：“地很坚硬，但这能说明什么问题呢？”

But the secret of the Arapaima scales is how exquisitely they transition from the hard to the tough.

但巨骨舌鱼鳞片秘密在于它们如何精巧地从坚硬向坚韧过渡。

The scantiest vegetation can scarcely draw nutriment from the ungenial soil, and animals shun the dreary and shelterless wilds.

稀少植物艰难地从坚硬土壤中吸取营养，而动物则避开这些沉寂，毫无遮蔽荒野。

Fireheart sank his claws as well as he could into the unyielding surface and crouched closer to the ShadowClan warrior.

火心将爪子尽可能地伸入坚硬地表，蹲下靠近影族战士。

Communities of priapulids and other similar organisms changed the seafloor from hard matgrounds to the softer sediment found in the Cambrian.

priapulids 和其他类似生物群落将海底从坚硬地垫变为寒武纪较软沉积物。

Fortunately one hand was free, the hand that held the knife, and again and again I struck down through the tough hide.

幸运是， 一只手是空， 那只拿着刀手，我一次又一次地穿过坚硬皮肤。

The human skull is surprisingly strong and flexible, but the delicate hunk of meat inside is more like a blob of jello floating in liquid.

人头颅是出奇地坚硬、但有韧性，是头颅以内那块娇嫩肉就像是浮在液体上一团果冻。

Barely ten inches high, its horny little feet pattered very fast as it sprinted across the yard and dived headlong into one of the Wellington boots that lay scattered around the door.

身高不足十英寸，坚硬小脚啪哒啪哒地走得飞快，穿过园子，一头钻进散放在门边一只惠灵顿皮靴里。

You can liberate a fossil from hard ground with a jackhammer, no argument there, but you know as well as I do that the jackhammer is going to break almost as much stuff as it liberates.

你确实能用一柄开山大锤把化石从坚硬地里弄出来，这点没什么好争论，但你我都知道大锤掘出来多少东西，差不多也砸碎了多少。

Beginning in mid-October in the northern hemisphere, the temperature drops, the nights draw in, the earth turns cold and hard, fog lies low over the land and rain drives hard across the austere, comatose grey-brown landscape.

从北半球10月中旬开始，气温下降，夜幕越来越早地降临，地面变得寒冷而坚硬，雾气低沉地笼罩着大地，大雨滂沱撒向这片荒凉，了无生机灰褐色土地。