One of the more innovative uses was to use it in windows as, up until then, they had just been holes in walls.
其中一个更具创新性的用途是把它用在窗户上,因为在那之前,窗户还只是墙上的洞。
I'll leave it up to you to use your discretion.
我把这件事留给你自己斟酌决定。
Don't use cold water as it shocks the blood vessels into closing up.
不要用冷水,因为冷水会刺激血管,使之闭合。
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