fall behind
落后
例句：
Students who are falling behind their peers at middle school may
not necessarily lag behind them at college.
在中學(xué)落后于同班同學(xué)的學(xué)生到了大學(xué)就不一定比其他同學(xué)差。
落后
例句：
Students who are falling behind their peers at middle school may
not necessarily lag behind them at college.
在中學(xué)落后于同班同學(xué)的學(xué)生到了大學(xué)就不一定比其他同學(xué)差。