try out sth.简单

(48) One possibility was that they merely used their eyes and tried out the plants they found, but that would probably result in a lot of wasted time and energy, not least because their eyesight is actually not very good.

（48）一种可能是，它们仅仅靠眼睛观察，并尝试所发现的植物，但这很可能会浪费大量时间和精力，尤其是因为它们的视力其实并不好。

But Ashe and others argued that the “threatened” tag gave the federal government flexibility to try out new, potentially less confrontational conservation approaches.

但阿什等人认为，“受威胁”的标签使联邦政府能够灵活地尝试新的、可能不那么具有对抗性的保护方法。

trying out different lifestyles.

尝试不同的生活方式。