after your picnic, please dispose of the litter.
野餐后请清除掉垃圾。
erase v.除去，擦掉，指有意识地除去字迹、声音等。
i erased the music on the tape before recording on the tape again.
我在往磁带上录音之前先消掉了上面的音乐。
exclude v.排斥；排除，不包括在内，与include互为反义词。
the restaurant excludes anyone who is not properly dressed from entering.
衣冠不整者不得进入该餐馆。
extinguish v.熄灭，扑灭(火)；使沉默，使暗淡。
firefighters extinguished a big fire.
消防队员扑灭了大火。