它们能引起牙釉质表层的细微裂缝，进而随着时间的推移导致更大的牙齿问题。
They can cause microscopic cracks in the surface of the enamel, which could lead to bigger dental problems over time.
在前臂腕部肌肉受到反复强行收缩时，会导致这些部位出现细微裂缝，从而引起发炎。
When wrist muscles in the forearm are repeatedly and forcefully contracted, the stress causes microscopic tears, leading to inflammation.
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