As usual, I did homework and joined many kinds of training class, but it 'sa joyful summer vacation this year.

和往年一样，我做家庭作业并参加了各种培训班，但是，今年的暑假是一个愉快的暑假。

youdao

Multiple logistic regression analyses were used to determine the association between usual number of hours of sleep during a 24-h period and si and SA (past 12 months and lifetime).

应用多元逻辑回归分析方法确定24小时的一个周期内常规睡眠的小时数与SI和SA(过去12个月和一生)之间的关系。

youdao

Multiple logistic regression analyses were used to determine the association between usual number of hours of sleep during a 24-h period and si and SA (past 12 months and lifetime).

应用多元逻辑回归分析方法确定24小时的一个周期内常规睡眠的小时数与SI和SA(过去12个月和一生)之间的关系。

youdao