... 安全问题增多 » Increased safety 我试一下 » I give it a try 有什么事,直接点 » Is there anything, to the point, ...
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And then since we have my red laser pointer, we will also try with the red laser pointer, which is centered at wavelength of 700 nanometers.
然后因为我们有我的红色激光笔,我们也可以用它试一下,它的波长集中在700纳米处。
OK, well.I'll try to explain this, This is a picture that was taken about 50 years ago.
好吧,我试着来解释一下,这张图片大概是50年前拍的。
So let me start off with-- is this the first day of shopping or was it yesterday?
首先我想问一下,第一次的试听课是今天还是昨天
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