lag behind

• The dynamic sif variation was found to lag behind the stress-pulse impingement by several microseconds .
  人们发现，动态应力强度因子的变化滞后于应力脉冲冲击几微秒。
• We don ' t want there to bve any commrade lagging behind
  我们不希望有一个同志掉队。
• The most current record is 2 months lagging behind
  当月的记录通常会于两个月后发布。
• Our figure lags behind the national average
  我们的数目落后于国家平均数。
• As a child , i always lagged behind 0thers
  在孩提时代，我总是落在别人后面
• You ' ll lag behind unless you study harder
  你如不更加努力地学习就要掉队。
• The children were tired and lagged behind their parents
  孩子们累了,落在了他们父母后面
• Teachers don ' t want there to be any students lagging behind
  老师不希望有任何学生掉队。
• You should catch up with it or you will be lag behind
  你跟不上就会落后
• You don ' t want to lag behind . neither does she
  你不想落后，她也如此。