Take-home lesson: It's worth getting your family vaccinated even if the flu seems mild, if only because in some pandemics, the second wave has been deadlier than the first.

教训：鉴于有些传染病的第二波比第一波更为致命，即使在疫情还不太严重的时候，你也不妨让全家人都去打上一针疫苗。

youdao

Very true, but then the second wave is impossible to hold off.

的确如此，但是你挡得了一波挡不了第二波。

youdao

Back in 1979, Kenner released their Y-wing fighter as part of the second wave of vehicles in their popular die-cast line.

早在1979年，Kenner发售了他们的Y翼战斗机，作为他们知名的印模压铸系列载具第二波中的一个。

youdao

He says no one knows whether the second wave will be more severe than the first or will remain moderate.

VOA: standard.2009.09.04

So, if something cycles through five wavelengths in a single second, we would just say that the frequency of that wave is five per second.

如果一个东西在一秒,内经历了五个波长，我们就说这个波的,频率是每秒5次。

麻省理工公开课 - 化学原理课程节选

The second I walked in, a wave hit me,

我进去的那一瞬就感受到了一股热浪，

哥伦比亚的氛围 - SpeakingMax英语口语达人

They began to give way in the 1970s to the second wave: less costly midrange minicomputers.

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In industry speak, a shift from the first wave of foreclosures to the second wave.

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This is the second wave of a major trend on television, which started with male characters.

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