You don't have to run in the endless stream of people to buy things, just log on to the website, move your fingers and give instructions to buy things home.
我们说的四季,一般指春夏秋冬。
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When we talk about the four seasons, we generally refer to spring, summer, autumn and winter.
她和其他志愿者利用午休、周末等空闲时间给学生们指导和培训。
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She and other volunteers use their free time such as lunch break and weekend to guide and train the students.