Although they're expensive, they last forever and never go out of style.尽管价格昂贵，但它们经久耐用，永不过时。Her dress is out of style.她的穿着不时髦.The frock is now out of style.这种女上衣已不时新了....
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....