改错 1.Sorry.I can't hear you well.Can you speak it again 2.Do
改错
1.Sorry.I can't hear you well.Can you speak it again
2.Do you know a number of the students in your scool?
1.Sorry.I can't hear you well.Can you speak it again
2.Do you know a number of the students in your scool?
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你能帮帮他们吗