第1个回答 推荐于2017-11-23
Beware of slippery floor 小心地滑
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第2个回答 2010-02-10
do not pee on the floor
no shouting
bio conteminated
radioactive elements present
Beware of slippery floor 小心地滑
No Smoking 请勿吸烟
No Littering 请勿随地抛垃圾
第3个回答 2010-02-10
do not pee on the floor
no shouting
bio conteminated
radioactive elements present