These slight movements appear to be of no service to the plants in question; anyhow, they are not of the least use in the way of climbing, which is the point that concerns us.

这些轻微的运动似乎对所讨论的植物没有任何帮助；无论如何，它们在攀登方式上一点用处都没有， 这正是我们所关心的一点。

The development of the mammary glands would have been of no service, and could not have been affected through natural selection, unless the young at the same time were able to partake of the secretion.

乳腺的发育将毫无用处， 也不会受到自然选择的影响，除非同时期的幼崽能够分享乳腺的分泌物。