共50条信息
Mark needs to learn Chinese_____ his company is opening a branch(分部) in Beijing.
I joined the summer camp _____ it was a great opportunity to make friends with people from different countries and learn about their cultures.
由于这款新的手机应用软件处于实验阶段，应该警示父母它对儿童有可能产生的负面影响。(warn)
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