1、 The crops suffered from frequent blights、农作物经常遭受病虫害。
2、 I enjoyed his frequent visits、我喜欢他经常来访。
3、 frequent
4、 I know him， but I don't frequent him much、我认识他，但不常往来。
5、 John likes to frequent the bars、约翰喜欢经常出入酒吧。
6、 Tourists frequent the old temple at the suburbs of the city、游客们常去城郊的古庙游览。
