There is no need to waste energy to contact a person seeks.

也没有必要浪费精力去交往一个见钱眼开的人。

After all, why waste energy hawking for insects in the sky?

还用浪费能量在空中捕食昆虫么？

Cars not only let out carbon dioxide but also waste energy.

汽车不仅让二氧化碳又浪费能源。

Your brain will not waste energy on language that it doesn't think is useful!

你的大脑是不会在它并不认为有用的语言上浪费能量的。

Environmentalists worry that kangs waste energy and add to choking air pollution.

环保专家们对炕表示担忧,认为炕浪费能源并增加令人窒息的空气污染.

Introduce a find of heat-pipe temperature reductioner used to waste energy recovery.

介绍了一种用于铁合金电炉余热回收的热管降温器。

Why waste energy chasing around, if you can attract prey towards you with a lure?

既然有引诱猎物过来的诱饵，何必浪费能量到处追赶猎物呢？

Introduce a find of heat - pipe temperature reductioner used to waste energy recovery.

介绍了一种用于铁合金电炉余热回收的热管降温器.

Environmentalists worry that kangs waste energy and add to choking air pollution .

环保专家们对炕表示担忧，认为炕浪费能源并增加令人窒息的空气污染。

We cannot change our height, so why waste energy complaining about being short?Our energy would be better spent on more constructive projects.

既然我们不能改变自己的身高，那么又何必浪费力气抱怨自己长得矮呢?把我们的精力用在更有建设性的计划上会更好。