两个孩子不能照射任何的紫外线光，否则他们极容易患上皮肤癌。
The boys could not be exposed to any ultraviolet rays, or they ran the risk of almost certain skin cancer.
并且要拿到大学英语四极证，否则作为英语专业的学生就太没有说服力了。
I must get CET 4 otherwise it will be too unjustified as an English major student.
在今后的学习，我要通过扩大词汇量增大阅读面来提高自己的英语水平。并且要拿到大学英语四极证，否则作为英语专业的学生就太没有说服力了。
I will enlarge my vocabulary and increase reading to improve my English in future study, also I will get college English brand four certificate, otherwise I can not persuade others as a English major.
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