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看到老师每天用粉笔在黑板上写字,粉笔灰弄得满手都是,很不卫生,而且粉笔灰烧手,所以我想用用过的口红
See the teacher every day with a chalk on the blackboard to write, get the hands full of chalk dust are very hygienic, and chalk ash burning hands, so I want to use the used lipstick