大多数人知道如何应对，但对于那些不知道的，说个大概：水星逆行就像一个细齿的梳子用来梳理回顾已经进行中事情的细节。
Most of you know the drill, but for those that don't, here's the skinny: Mercury Retrograde is all about reviewing the details of what's already in motion with a fine-toothed comb.
高稳定的激光可以产生极细的齿，这样可以非常精确的测量特定的频率或频率变化。
A highly stabilized laser produces very fine teeth, enabling highly precise measurements of specific frequencies or changes in frequency.
电子显微照揭示了鲨鱼皮的速度奥秘，“牙状鳞片称为皮肤的细齿，水通过密纹而没有翻滚”鲨鱼研究员乔治·伯吉斯说。
An electron micrograph reveals sharkskin's secret to speed: tooth-like scales called dermal denticles.
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