英语翻译学生们应该在学习上与同学们竞争.父母给孩子太多压力是错误的.他正在街上闲逛.学会放松对他来说很重要.她让我一连说了45分钟.在我看来,医疗改革（medical reform）有必要.不要网上翻译的Many volunteers went to care for left-behind children ___ they could live happily.A.because B.although C.until D.so that

The students should compete with each other on learning.
It is wrong for parents to give their children too much pressure.
He is wandering on the street.
Learning to relax is very important to him.
She let me say for 45 minutes nonstop.
In my view, the medical reform is necessary.