例句與造句

1. Tthe quasi - biennial oscillation , an oscillating phenomenon in which the wind in the upper atmosphere over the tropics changes its direction from east to west and then back to east about every two years
   準(zhǔn)兩年振蕩發(fā)生在赤道附近的高空，分為西風(fēng)異常和東風(fēng)異常兩個交替出現(xiàn)的位相，周期約為兩年。
2. It's difficult to find oscillating phenomenon in a sentence. 用oscillating phenomenon造句挺難的