Fog is a natural phenomenon. It usually appears in the morning, so people call it morning fog.

雾是一种自然现象，它通常出现在早晨，因此人们叫它晨雾。

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It usually appears at midlife and beyond and involves the weight bearing joints and joints of fingers.

它通常出现在中年，远远超出了，它包括负重手指关节和关节。

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It usually appears at the RF, blade passage frequency and commutator brush frequency, and their higher harmonics.

它通常出现在射频，叶片通过频率和整流子刷频率，其高次谐波。

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We are all in agreement that buybacks usually are not the best use of cash, but it appears there is value here.

FORBES: Plenty Of Respect For Intel But Not Much For Apple

However, unless a phrase appears repeatedly in written text, an acronym is usually more confusing to a reader than spelling it out.

FORBES: Not NSFW: Dealing with Acronym Addiction