veteran,n.经验丰富的人，老手 The retired principal was a veteran of the city's public school system.这位退休校长对全市公立学校制度深有 研究。 at a time. 每次，一次 Take the pil逃s two at a time.这种药片每次吃两片。 A veteran driver,whose manners are give rise to.引起，导致，为..的原因 faultless,told me it would help if motorists The oil shortage gave rise to serious problems.石油的短缺 引起了严重的问题。 learnt to filter correctly into traffic streams one The news gave rise to considerable anxiety among the at a time without causing the total blockages citizens.那条消息使市民忧心忡忡。 that give rise to bad temper.Unfortunately, let alone(I)更别提 modern motorists can't even learn to drive,let He couldn'teven sit,let alone walk.他坐都坐不起来 alone master the subtler aspects of 更不用说走路了。 roadsmanship.Years ago the experts warned David can't drive a car,let alone a truck.大卫小汽车都不 us that the carownership explosion would 会开，更谈不上开大卡车了。 (2)不打扰，不惊动 demand a lot of us to take this message to When Bob gets angry,just let him alone. heart. 鲍勃发怒时，你不要去理他。 Let the dog alone.不要惊动那条狗。 wam,v.警告，告诫 The message warned of possible danger..带来的口信警 告说可能会有危险。 Parents warned their children to look both ways before crossing the road.父母告诫孩子在穿马路前要两边看看 He warned me against going there at night,他告诫我夜 里不要到那里去。 take..to heart对..想不开，为.伤心 Don't take her words to heart..别把她的话往心里去。A veteran driver, whose manners are faultless, told me it would help if motorists learnt to filter correctly into traffic streams one at a time without causing the total blockages that give rise to bad temper. Unfortunately, modern motorists can’t even learn to drive, let alone master the subtler aspects of roadsmanship. Years ago the experts warned us that the carownership explosion would demand a lot of us to take this message to heart. veteran, n . 经验丰富的人，老手 The retired principal was a veteran of the city’s public schoolsystem. 这位退休校长对全市公立学校制度深有 研究。 at a time. 每次，一次 Take the pills two at a time. 这种药片每次吃两片。 give rise to . 引起，导致，为…..的原因 The oil shortage gave rise to serious problems. 石油的短缺 引起了严重的问题。 The news gave rise to considerable anxiety among the citizens. 那条消息使市民忧心忡忡。 let alone (1) 更别提 He couldn’t even sit ,let alone walk. 他坐都坐不起来， 更不用说走路了。 David can’t drive a car ,let alone a truck. 大卫小汽车都不 会开，更谈不上开大卡车了。 （2）不打扰，不惊动 When Bob gets angry ,just let him alone. 鲍勃发怒时，你不要去理他。 Let the dog alone. 不要惊动那条狗。 warn, v. 警告，告诫 The message warned of possible danger. 带来的口信警 告说可能会有危险。 Parents warned their children to look both ways before crossing the road. 父母告诫孩子在穿马路前要两边看看 He warned me against going there at night . 他告诫我夜 里不要到那里去。 take….to heart 对…..想不开，为…伤心 Don’t take her words to heart. 别把她的话往心里去