1·Once in space, ion engines steadily propel a spacecraft until it travels faster than it would have using a chemical rocket.
一旦进入太空，离子发动机将稳步推进航天器，最终达到的速度会比使用普通火箭的更高。
2·This little spheroid sports thousands of tiny hairs around the outer edge of its body called cilia that propel it at lightning speeds through freshwater scum.
这个小小的球状体的身体外壳上有着上千条细小的发丝，叫做纤毛，推进它以闪电般的速度穿行于淡水泡沫中。
3·And scientists believe that making stone tools helped propel that evolution.
而科学家认为，制造石器帮助推进这种进化。
4·In theory, the airbreathing engine could propel an airplane to speeds of Mach 7 or faster, enabling aroundtheworld flights that would take several hours.
从理论上讲，这种喷气引擎可以将飞机速度推进到7马赫甚至更快，使飞机能在数小时内完成环球飞行。
5·One might think that fusion propulsion requires some exotic fuel to propel a rocket a million-or-so-times more energetically than standard chemical fuels.
有人可能会认为聚变推进需要一些能量高于标准的化学燃料一百多万倍的稀有燃料推进一个火箭。
1·Even if you feel a bit anxious, allow courage to rise and propel you forward.
即使你会觉得焦虑，让勇气带着你站起来，驱使你向前进。
2·The force of their recognition will propel them towards precise analysis of their former lives, allowing them to progress to new levels of awareness.
他们识别的力量会驱使他们去仔细分析他们以前的生活，允许他们进展到新层次的觉醒。
3·Everything that I think that I need to do is all only in order to propel me to some place that when I get there, I think I will be happier.
每一件我认为我需要做的事都是为了驱使我到达某个地方，我认为当我到达那儿时，我会更快乐。
4·As I grow up, I realize my dream to be a scientist might not come true forever, but I believed my advance in academic study will propel myself towards success.
伴随着我成长，我意识到作为一名科学家的梦始终会保留成为一个梦，但是我深深相信，在学科的深造会驱使我迈向成功。
5·We shall never escape from this circle: the idea of passive mankind, and the power of the law being used by a great man to propel the people.
我们将永远逃不脱这个圈套：被动人类的观念，以及法律的强制力被一个伟人用来驱使每个人。
1·Today I want to talk about something that I haven't talked about before. It's a "success secret" that is rarely used, but if used properly will propel you towards success.
今天我讲个以前没提到的内容：成功的小秘诀，我们以前很少发觉它，其实如果加以合理利用，它将会激励我们走向成功。
2·Today I want to talk about something that I haven't talked about before.It's a "success secret" that is rarely used, but if used properly will propel you towards success.
今天我讲个以前没提到的内容：成功的小秘诀，我们以前很少发觉它，其实如果加以合理利用，它将会激励我们走向成功。