booster

Or will a booster vaccine be necessary?(或者有必要再加强一针吗？)

NASA crashed an empty rock booster into the moon to see if water-ice crystals were at the South Pole.(NASA将一枚空岩助推器撞向月球，以探测在月球南极是否存在水冰晶体。)

Another budget booster.(另外的预算在大增。)

Some experts say booster shots might still be needed every 10 years or so.(一些专家说，也许每过十年左右还要做一次加强注射。)

Because getting attention from beautiful women feels good, it's a confidence booster.(得到更多的女性青睐，男人自我感觉良好，变得自信满满。)

The huge, showy booster rockets fallen away, it was just a little glider or an aeroplane.(巨大显眼的助推火箭脱离后，它看上去只是架小型滑翔机或飞机。)

The booster will burn for about 60 seconds, enabling engineers to validate and test its performance.(该助推器将会燃烧大约60秒左右，使的工程师可以对它的性能可以进行证实与测试。)

Even in a time of climate change, it's hard to be a nuclear booster.(即便是在气候变迁时代，要成为一名核子支持者也相当困难。)

God functions as a kind of booster for the absoluteness of self.(作为一个助推器的一种绝对的自我上帝职能。)

However, they also give us access to our favorite tunes, and we all know music is a great mood booster.(然而，它们也让我们可以分享最喜欢的曲子，并且我们也都知道音乐是最伟大的情绪增进剂。)