But maintaining that marital status quo is essential: the same study found that divorce in mid-life will increase the risk three-fold.

但是，维持这样的婚姻现状是至关重要的：同样的研究发现，如果中年离婚得这种病的风险会增加3倍。

youdao

It is not only possible, but also essential, to study the ecosystem in terms of aesthetics.

从美学的角度研究生态系统不仅是可能的，而且是必要的。

youdao

But for decades the study of economics paid little heed to the former and relegated the latter to a sub-discipline, not an essential element in broader theories.

但是，几十年来，经济学研究却很少去关注前者，而且还把后者降级为一门分支学科，没有使之成为更广泛的理论的一个基本组成部分。

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Dr. Goel, co-author of the March study, agrees that including a placebo arm "would have been better" but says his study was an essential preliminary to larger trials.

WSJ: Flavor in Curry Favored by Some for Joint Pain