The reason why many seeds require a period of stratification is to guarantee that the seeds grow after and not before unfavorable weather.

许多种子需要一段时间分层的原因是为了保证种子在恶劣的天气来临之后而不是之前生长。

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Unfavorable conditions that are relatively predictable probably pose a simpler problem for organisms than do unpredictable conditions.

对生物体来说，相对可预测的不利条件可能比不可预测的条件造成更简单的问题。

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A ship, after a long and tedious voyage, was met by head-winds and unfavorable currents.

船经过漫长而乏味的航行后，遇到了逆风和逆流。

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"Her unfavorable rating is usually in the high 40s to low 50s, which,for a speaker of the House is really,really extraordinary."

VOA: standard.2010.05.11

Even something quite unfavorable might happen at least a little bit spontaneously.

初始浓度是多少,即使有些不太有利的过程。

麻省理工公开课 - 热力学与动力学课程节选

Half of them receive a kind of unfavorable evaluation.

而另一半的结果不容乐观。

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Chrysler with a 55 percent unfavorable rating and a very favorable rating of only seven percent.

FORBES: Chrysler, and The Most Acclaimed Super Bowl Ad Of All Time? Here's the Rest of the Story

Breast-feeding lowers the risk of later breast cancer of a particularly unfavorable type a kind whose growth is not promoted by hormones.

NPR: Study: Breast-Feeding Decreases Cancer Risk

Investors require compensation for the risk that market conditions will be unfavorable at a time when they need to sell their high yield bonds.

FORBES: How Cheap Is High Yield?