評(píng)論
打印
The craft must escape the pull of the Earth's gravity.
航天器必須要掙脫地球的引力
It must contend with solar winds that could blow it off course
它還必須克服太陽(yáng)風(fēng)以保持飛行航向
cosmic radiation which can disrupt radio contact,
而宇宙射線可能會(huì)干擾無(wú)線電通訊
and the craft is constantly being dragged from its course
而且航天器還持續(xù)受到
by the gravitational pull of other planets.
其他行星引力的影響
Just a tiny error
一個(gè)微小地差錯(cuò)
could result in Curiosity missing Mars altogether.
就有可能讓好奇號(hào)無(wú)法到達(dá)火星
To get the distance scales approximately similar,
我可以舉例說(shuō)明距離的尺度
the quarterback here is throwing
這些四分衛(wèi)要扔的
a pass 30 metres, 40 metres away.
是30或40米的長(zhǎng)傳
Brian's target of Mars
而布賴(lài)恩的目標(biāo)火星
is hundreds of millions of kilometres away.
卻在數(shù)億公里之外
It's similar to if this quarterback here
就好像一名四分衛(wèi)要從這里
were throwing a football to a receiver in, say, London,
將橄欖球扔向一名身在倫敦的外接球手
and needing to hit his mark.
而且還要恰好扔到他手中
It'd be the wrong kind of football.
那里就不是橄欖球是足球了
重點(diǎn)解釋?zhuān)?/p>
1.contend with 與 ... 作斗爭(zhēng)
例句：She's had a lot of problems to contend with.她有許多問(wèn)題要解決。
2.blow off 吹掉；將(熱水等)放出
例句:Exterior doors were blown off their hinges.外面的門(mén)被風(fēng)從門(mén)軸上吹掉下來(lái)。
3.similar to 跟 ... 類(lèi)似的
例句：A plantain is similar to a banana.大蕉類(lèi)似于香蕉。
