fall behind in的意思

汉语翻译

例句：

1. Soon he fell behind in the race.不久他就跑在后头了。
2. The major world powers are afraid of falling behind in the arms race.世界各大强国均惟恐在军备竞赛中落後。
3. I have fall behind in my work since last week.从上周起，我在工作中落后了。