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fighting怎么讀英語(yǔ) fighting怎么讀( 二 )

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【單詞】equals 原型：equal ['ee-kwuhl]['i?kw?l] vt. 比得上；等于
【單詞】curvature ['kur-vuh-cher]['k??v?t??] n. 彎曲；（幾何）曲率
【單詞】foot [foo?t][f?t] n. 英尺
【單詞】downward ['doun-werd]['da?nw?d] adv. 向下
【單詞】traveled 原型 travel ['trav-uhl]['tr?vl] v. 移動(dòng) ， 旅行
You never get any closer to the earth, and so you just keep going around and around.
【譯】你不會(huì)離地球更近，所以你就一直繞來(lái)繞去 。
The hard part of getting into orbit isn't the altitude, it's reaching the horizontal speed necessary to orbit.
【譯】進(jìn)入軌道最困難的部分不是高度，而是達(dá)到進(jìn)入軌道所需的水平速度 。
【短語(yǔ)】part of … （某事物的）一部分；例句：He received part of his education in England. 他有一部分教育是在英國(guó)接受的 。
【單詞】reaching 原型：reach [reech][ri?t?] v. 到達(dá)；伸出；達(dá)成
【單詞】horizontal [hawr-uh-'zon-tl, hor-][?h?r?'z?ntl] adj. 水平的；橫的
【單詞】speed [speed][spi?d] n. 速度；迅速
It's VERY fast, and so it takes a lot of thrust to get there.
【譯】這需要很快 ， 所以需要很大的推力才能達(dá)到這個(gè)速度 。
"Up" is easy.
【譯】“向上”很容易 。
That's not what lets you enter orbit, though.
【譯】但這并不是讓你進(jìn)入軌道的原因 。
You have to go sideways.
【譯】你得向側(cè)面移動(dòng) 。
【單詞】sideways ['sahyd-weyz]['sa?dwe?z] adv. 向旁邊；斜著地；向側(cè)面地
An object in orbit is locked by gravity to the thing its orbiting, it's just going fast enough sideways such that its continued "falling" continually misses the orbited object.
【譯】一個(gè)在軌道上的物體被重力鎖定在它的軌道上，它的側(cè)向運(yùn)動(dòng)速度足夠快，以至于它持續(xù)“下墜”然而并不會(huì)向它圍繞的物體靠近 。
【單詞】object ['ob-jikt, -jekt]['?bd??kt] n. 物體；目標(biāo)；對(duì)象
【單詞】locked 原型：lock [lok][l?k] v. 固定；鎖(住)；抓牢
【單詞】orbiting 原型：orbit ['awr-bit]['??b?t] vt. 繞軌道而行；進(jìn)入軌道 vi. 盤旋
【單詞】continually [kuhn-'tin-yoo-uh-lee][k?n't?nju?li] adv. 不斷地；頻繁地
Things orbit the earth because of gravity.
【譯】由于引力，物體繞地球運(yùn)行 。
【fighting怎么讀英語(yǔ) fighting怎么讀】If you "broke free of gravity" you would just leave the earth, going further and further from it.
【譯】如果你“掙脫了重力”，你就會(huì)離開地球，離地球越來(lái)越遠(yuǎn) 。
You are right though, as you go up, there is less drag and less gravity.
【譯】但你是對(duì)的 ， 當(dāng)你往上爬時(shí)，阻力和重力都變小了 。
But to get into orbit, very little of the energy is spent going up and fighting drag.
【譯】但要進(jìn)入軌道 ， 僅需要很少的能量花在上升和抵抗阻力上 。
【單詞】spent 原型：spend [spend][spend] v. 花費(fèi)；浪費(fèi)
【單詞】fighting 原型：fight [fahyt][fa?t] vt. 對(duì)抗
Most of the energy is spent accelerating sideways.
【譯】大部分能量都花在側(cè)向加速上 。
【短語(yǔ)】most of … 大部分，大多數(shù)的；絕大多數(shù)；例句：I think most of these obstacles can be surmounted. 我認(rèn)為這些障礙大多數(shù)都是可以克服的 。
【單詞】accelerating 原型：accelerate [ak-'sel-uh-reyt][?k'sel?re?t] v. 加速；提前

fighting怎么讀英語(yǔ) fighting怎么讀



With an orbit, gravity is still pulling you down, but because you go so fast sideways, you "miss the Earth," so you just swing around it.

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