这位老太太确信，今天她儿子会回家来为她庆祝生日的。(to feel assured)
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如果确实在经济上有困难，你可以申请学生贷款。(to apply for)
思想是通过语言来表达的。(by means of)
It would be wise to get his eyes checked to ensure there is no problem.
Measures have been taken to guarantee that no student will have to drop out of college for financial
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