The similes are for him instrument in the poem's larger agenda to reinforce our faith in the coexistence of free will and divine providence -- difficult, huge concepts.

这些比喻在这首诗更深的议程中是作为工具,来深化我们对自由意志和神圣天命的共存,所持的信念--这是两个艰深宏大的概念。

耶鲁公开课 - 弥尔顿课程节选

Add to the above Hobbes' repeated insistence that law serve as an instrument for achieving social equality.

除此之外,霍布斯坚决主张,法律应当是维护社会公平和平等的工具。

耶鲁公开课 - 政治哲学导论课程节选

it's dependent just the same way that well, for example, harmony is denpendent upon the physical instrument.

依赖的方式同,举个例子,和声依赖物质的乐器是一个道理。

耶鲁公开课 - 死亡课程节选

For those of you don't know what that is it's simply an instrument that counts radioactive particles in the air, and MIT now that you're at MIT, you'll all have a chance to see one first hand if you're ever in any of the labs, especially in the chemistry or bio labs.

不知道它是什么,它就是一个简单的,计算在空气中放射粒子数目的仪器,你们现在来了，如果你们在实验室里工作的话,尤其是化学和生物实验室，你们有很多机会亲手用到它。

麻省理工公开课 - 化学原理课程节选

And, in a similar point, he maintains that punishment can never be used as an instrument of revenge but only for what he calls the correction or what we would call the rehabilitation of the offender.

同时他还认为,法律上的惩罚是不能作为复仇的工具,而当作为纠正罪犯过错的工具,即我们今天叫的,对罪犯进行改造。

耶鲁公开课 - 政治哲学导论课程节选