有迹象表明，多效性植物激素实际上可能通过激活酶来发挥作用，这些酶从细胞壁释放出这些更为特殊的化学信使。

There are indications that pleiotropic plant hormones may actually function by activating the enzymes that release these other, more specific chemical messengers from the cell wall.

youdao

雌雄异熟和雌雄异位共同存在于两性植物中是一种有效促进异交的机制。

A combination of dichogamy and herkogamy in hermaphroditic plants is an effective mechanism to encourage outcrossing.

youdao

这可能是个持续性植物状态，即便原则上，都没有可能重启开关。

This might be a persistent vegetative state with no possibility of turning it on, even in principle.

youdao

The plants can be deficient in certain things, especially fat soluble vitamins that come from meat and from essential amino acids.

植物中缺乏某些物质,特别是脂溶性维生素,那些只能从肉类和必需氨基酸中获得

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now that seems counterintuitive now because we think that a plant based diet may be more healthy for people than a meat based diet, but remember, that we're fighting off overnutrition and these folks were fighting off undernutrition.

现在看来似乎并非如此,因为我们认为,对于人类来说,植物性饮食比以动物性饮食更为健康,但是请记住,我们正在对抗营养过剩,而这些人们正在和营养不良作斗争

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选