1物价随季节而变动.
prices vary with the seasons
2.这场雨对比赛没多大影响.
the rain didn't have much effect on the game
3.他很仔细地处理了一个困难的局面.
he carefully handled a difficult situation
4.所有的老师都很关心我学习方面的进步.
all the teachers care for my progress in study
5.杀灭昆虫已经导致了生态的失衡.
killing insects has led to ecological imbalance