- 重点词汇
- anart. 一(在元音字母前代替不定代词a);一任一某一;一个;
- soundedv.(使)发出声音,响( sound的过去式和过去分词 );发(音);试探;探测;
- Air-raidadj.空袭的,防空袭的;
- alarmn.惊恐;警报;闹铃;动员令;
- nightn.夜;晚上;(举行盛事的)夜晚;黑暗;黑夜
- theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
- inprep. 在里面;在(某范围或空间内的)某一点;在(某物的形体或范围)中;在…内;在…中;进入
- depthsn.深( depth的名词复数 );深处;深厚;浓度;
- 相关例句
Messengerliu shun cheng serious injuries will be the first blind embrace into the air-raid shelter.
通信员刘顺成身负重伤,将双目失明的先有挟进防空洞.
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Baotianman Wildlife Nature Reserve is not only the natural " air-raid shelter. "
宝天曼自然保护区不仅是野生动物的天然 “ 防空洞 ”.
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If gravity and air resistance in equilibrium the parachute would just hang motionless in the air.
假设重力和空气阻力大小相等,降落伞会静止在空中.
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Then, disregarding the influence of the air resistance, I see the stone descend in a line.
然后, 忽视空气阻力的影响, 我在一条直线看见石头下降.
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This increases their air-resistance and reduces the shock of impact when they the ground.
这一做法增加了对空气的阻力,以及减少在落地时震动的冲击力.
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This increases their air-resistance and reduces the shock of impact when they bit the ground.
这样可以增加空气阻力,减小它们摔到地面上的撞击力.
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We do not bother about air resistance because it is far smaller than water resistance.
我们不必为空气的阻力多伤脑筋;因为与空气阻力相比水阻力要小得多.
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Less power is required to overcome air resistance in streamlined machines.
流线型机器在克服空气阻力时所需能量要相对少些.
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Extra weight increases the consumption of fuel as does increased air resistance.
额外的重量会加大燃油消耗并且增加空气阻力.
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