- 重点词汇
- usuallyadv.通常,经常,平常,惯常地;一直,向来;动不动,一般;素;
- sheltersn.居所( shelter的名词复数 );避难所;(无家可归者或受虐待者的)收容所;遮蔽;
- raidn.(骑兵队等的)急袭,突然袭击,突击,(军舰等的)游击;劫掠,劫夺,(盗贼,狐等的)侵入;突然查抄[搜捕],围捕;
- forconj.因为,由于;
- locatedadj.坐落的,位于的;
- arevi.(用于第二人称单复数现在时,第一、三人称复数现在时)是;
- andconj. 和,与;而且;于是,然后;因此;
- installationsn.装置( installation的名词复数 );安装;就职;军事设施;
- solidadj.固体的;坚硬的;实心的;可靠的;纯质的;连续的;立体的;一致的;
- 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
- 相关例句
There had been air raid warning, and the train slowed to thirty miles an hour.
由于空袭警报已拉响, 车速减到每小时三十英里.
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All the air raid warnings , without exception , had been false alarm.
所有空袭预告-- 毫无例外 --都是虚假警报.
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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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