by necessity

基本解釋

She learned the trade by necessity and under duress.
因為需要和被迫，她學會了做生意。
Health, by necessity, is a co-product of individual action and the environment we live in.
健康不可避免地成為我們個人行動和生活環(huán)境的副產(chǎn)品。
For it is about our actions that we deliberate and inquire, and all our actions have a contingent character; hardly any of them are determined by necessity.
因為這與我們思考和調(diào)查的行為有關(guān)，而我們的所有行為都有著偶然性，它們就很難由必然所決定。

That will,by necessity, need more troops, not only for the training, but for the mentoring in the field.
And, what we will do next day is we will look at the consequences of such an energetic set up, and rationalize that when ions form, by necessity we must form ionic crystals.
明天我們要做的是,觀察一下,這樣一個充滿活力的創(chuàng)造的結(jié)果，然后合理地解釋要想得到離子，我們必須先得到離子晶體。
麻省理工公開課 - 固態(tài)化學導論課程節(jié)選
That doesn't, by the way, happen until 1934 when it became a kind of pronouncement of necessity at the International Soviet Writers Conference on that occasion.
直到1934年4,國際蘇聯(lián)作家會議,發(fā)表了類似的聲明。
耶魯公開課 - 文學理論導論課程節(jié)選

This will, by necessity limit the sensitivity of this category (i.e. some lead-related deaths are missed).
FORBES: Guest Post: After an Unprecedented Request for a Retraction, A Close Look at the Data