我们的每一个会员都被鼓励在食堂就餐时用餐盘代替塑料袋，为环保贡献自己的一份力。
Every single member is encouraged to use trays instead of plastic bags to have meals in the dining hall, contributing to the environmental protection.
我们可以在寒假里参加一些公益事业，为解决这个全球性的问题贡献自己的一份力。
We can make our own contribution by participating some public benefit activities during the spring festerval break.
库里的表现中规中矩，但是他确实为美国队贡献了自己的一份力，这是从1994年以来美国队再一次夺冠。
Curry's Numbers were modest at best but he contributed when called upon and he's part of the first USA team to win the tourney since 1994.
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