除了正常的轻微氧化反应可能会产生极细小颗粒外，如果里面的小颗粒过多，有可能是由于里面钻入的灰尘。
Oxidation can create some solid particles but if there is particularly more solid in fragrance oil it might be because dust from the air has gotten into the bottle.
具有一定的韧性，可以覆盖细小的裂缝及抵御轻微震动。
Has a certain toughness, can cover small cracks and resist the slight vibration.
看来，有时阻挠我们前进的不是高山、深渊，而是极细小的一粒沙子。为了避免因一次轻微的过失遭指责，我们便编出谎言来掩盖。于是从编造第一个谎言开始，我们便背上了两个沉甸甸的包袱：\“过失\”与\“谎言\”。
It seems that the greatest obstacle on one's way forward may not be a high mountain or a deep valley but a grain of sand that is hardly visible. 4 To avoid blame on a minor fault one may tell a lie.
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