-
and a unit is generally 3 to 5 hours of work a week.
而且每门课通常是一周3到5个小时。
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$firstVoiceSent
- 来自原声例句
and a unit is generally 3 to 5 hours of work a week.
而且每门课通常是一周3到5个小时。
应用推荐