科学政策研究所的研究员安德鲁·舒伯特表示，合作的增长有一部分是出于必要性。
Andrew Schubert, a researcher at the institute for science policy research, says that the rise in collaboration is partly out of necessity.
总之，购物应出于必要合理的需求，而不要一时冲动。
All in all, we should buy things out of necessity and ration instead of impulse.
一部分是出于必要，一部分出于真诚，他们都试着泰然自若地接受这件事。
Partly out of necessity, partly out of sincerity, they are trying to take it in stride.
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