fall behind A. intransitive verb ① (move to a position behind others) 落在后面 luòzài hòumian ▸ to fall behind in the arms race 在军备竞赛中落后 ② (with payment) 拖欠 tuōqiàn ; (with work or other activity) 没有及时做 méiyǒu jíshí zuò ▸ I had to sit up studying all night so as not to fall behind 我不得不整晚熬夜学习，以免落下功课 ▸ to fall behind with sth; 拖欠某物 ▸ to fall behind with the rent 拖欠租金 ▸ I've fallen behind with my correspondence 我积压了很多信没有回 B. transitive verb [fall behind sb/sth] 落在某人/某事物的后面 luòzài mǒu rén/mǒu shìwù de hòumian ▸ he has fallen behind his classmates in maths 他在数学方面落后于班上的其他同学 ▸ their wages have fallen behind (earnings in) the private sector 他们的工资比私营企业员工（的薪水）低 |