非此不可
It must be this way.
以上为机器翻译结果，长、整句建议使用 人工翻译 。
当然也没有必要非此不可，适当的竞争有利于金融体系。
Nor is it necessarily desirable, because a healthy dose of competition is good for the financial system.
youdao
人们结婚是因为他们相爱， 想要生活在一起，就非此不可。
You married because that was the way two people in love could live together.
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