Don't fall behind now, just when you're doing so well.你干得很出色,这个时候可别后退.Don't fall behind with your gas bill.不要拖欠煤气费.Put on a spurt, or you'll fall behind.加把劲, 不然你要落后了....

Don't fall behind with your gas bill.不要拖欠煤气费.Don't fall behind with the rent, or you'll be evicted.不要逾期不缴房租, 否则会被逐出.Don't fall behind with your rent.不要拖欠房租....

落后，下降，退后，逾期（付款等）...

拖欠未付（租金等）...

fall behind with的音标：fall behind with的英式发音音标为：[fɔ:l bi'haind wið]fall behind with的美式发音音标为：[fɔl bɪ'haɪnd wɪð]...

fall behind的音标：fall behind的英式发音音标为：[fɔ:l bi'haind]fall behind的美式发音音标为：[fɔl bɪ'haɪnd]...