| 单词 | shower cloud | 
| 释义 | > as lemmasshower cloud   shower cloud  n. a cloud which brings a rain shower; esp. a cumulonimbus cloud. ΘΚΠ the world > the earth > weather and the atmosphere > weather > cloud > 			[noun]		 > a cloud > nimbus > cumulo-nimbus shower cloud1823 cumulo-nimbus1887 1751    W. Douglass Summary First Planting Brit. Settlem. N.-Amer. II. No. 14. 218  				The Spring Flights 1751 were very large, like Thunder Shower Clouds, but soon over.]			 1823    London Lit. Gaz. 5 Apr. 219/3  				Now comes a shower-cloud o'er the sky, Then all again sunshine. 1880    W. C. Ley in  Nature 1 Jan. 210/2  				If Nimbus is to be retained, it might be subdivided into its two essentially distinct varieties, the massive local shower-cloud, and the extensive bank of composite rain-cloud; and for these varieties the titles cumulo-nimbus and strato-nimbus..might come into use. 1910    A. W. Clayden in  Encycl. Brit. VI. 559/1  				Cumulo-nimbus (Cu.-N.), The Thunder-cloud; Shower-cloud—Heavy masses of clouds, rising in the form of mountains, turrets, or anvils. 2006    A. Bowen  & J. Pallister Understanding GCSE Geogr. 		(ed. 3)	 vi. 91/2  				Cold air is being warmed up by its journey over the sea, encouraging air to rise and to form the cumulo-nimbus shower clouds shown. < as lemmas  | 
	
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