Senior Red Cross Officer for Health in Emergencies,Tammam Aloudat, says countries in the Northern hemisphere have gone through the first wave of the Swine flu pandemic and now have to prepare for a second wave of the virus.

VOA: standard.2009.09.04

One--the first wave of REIT growth occurred right after Congress passed the 1960 bill.

EITs增长的第一波高潮,发生在国会1960年法案通过之后

耶鲁公开课 - 金融市场课程节选

Just almost all the islands in that sea are inhabited by Greeks, mostly by the Greeks that came in that first wave of immigrants earlier on, not colonized during the eighth century and afterwards.

那片海域的诸岛上居住的几乎都是希腊人,他们大多都是早期的,第一批移民,而非八世纪以后的殖民者

耶鲁公开课 - 古希腊历史简介课程节选