Level 17 Level 19
Level 18

256-270


15 words 0 ignored

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earth
地球
environment
环境
soon
很快
use
使用
How often..?
多久一次
questionnaire
调查表
turn off
关掉
hose-pipe
水龙头管
dripping
正在滴下来
full
充满了
flush the toilet
冲厕所
map
地图
bank
银行
bus station
公交汽车站(终点站)
tower