重点讲解：
1. pass on 将…传给；将…交给；
例句：Everyone was struck by their readiness to pass on all they knew.
他们很愿意把自己的知识传给别人，这给每个人都留下深刻印象G3#5*Y2rd0iLg!。
2. add insult to injury 更为不公的是；更不可接受的是；更糟的是；
例句：The driver of the car that killed Smith got a $250 fine and five penalty points on his licence. To add insult to injury, he drove away from court in his own car.
撞死史密斯的汽车司机仅被罚款250美元，驾照上扣了5分Z*1K8JHFtU^aEUjL-izT。更让人不可接受的是,他竟然开着自己的车从法院扬长而去Z4_#]j,XjbT3FOH。
3. look up （在参考书、列表等中）查检（事实或信息；
例句：You can look up a character under its radical.
你可以根据部首查找汉字0Ikm_,k4,z9。
4. swell up (身体部位)肿胀，膨胀；
例句：When you develop a throat infection or catch a cold the glands in the neck swell up.
当咽喉感染或感冒时，扁桃腺就会肿胀VFH-xiV|iw。