Spots of rain had begun to fall.

雨点已经开始落下来了。

《柯林斯英汉双解大词典》

Awakening of Insects signals a rise in temperature and increased rain fall.

惊蛰标志着气温上升，降雨量增加。

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Though plenty of rain may fall on savanna during the year, for at least part of the year little does, creating the drought stress ultimately favoring grasses.

尽管一年中大草原上可能会有大量降雨，但至少有一段时间是降雨很少的，造成干旱压力，最终有利于牧草生长。

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"We needed rain yesterday,right,". "We needed rain most probably a fortnight ago for our crops to realize their full potential but most probably been 30 percent of our yield potential gone and every day it doesn't rain that will fall quite dramatically from there."

VOA: standard.2009.09.03

If you look at it long enough, it is a word that opens and spreads out, makes a circle of a far horizon, a word on which rain can fall and dimple or sweep across in lashing gusts and leave unperturbed, a word that is calm enough to look at, almost lulling, but also hints at holding unreckonable power."

VOA: standard.2010.08.04

Forecasters say up to 50mm (2in) of rain could fall in parts of the country on Saturday, and the Met Office has issued an early severe weather warning.

BBC: NEWS | UK | Flood-hit UK braced for more rain

Parts of the Calder Valley, including Hebden Bridge, saw a month's worth of rain fall in three hours.

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In southern California for example, over the last 150 years the most common amount of rain fall is 13 inches but the second most common is 26 inches.

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