查询词典 grindstone

The next Morning I began to consider of Means to put this Resolve in Execution, but I was at a great loss about my Tools; I had three large Axes and abundance of Hatchets,(for we carried the Hatchets for Traffick with the Indians) but with much chopping and cutting knotty hard Wood, they were all full of Notches and dull, and tho' I had a Grindstone, I could not turn it and grind my Tools too, this cost me as much Thought as a Statesman would have bestow'd upon a grand Point of Politicks, or a Judge upon the Life and Death of a Man.

我有三把大斧和许多小斧（我们带了许多小斧，是准备与非洲土人做交易用的），但由于经常用来砍削多节的硬木头，弄得都是缺口，一点也不快了。磨刀砂轮倒是有一个，但我却无法转动磨轮来磨工具。为了设法使磨轮转动，我煞费苦心，犹如政治家思考国家大事，也像法官决定一个人的生死命运。

He sharpened the edge of his knife on a grindstone.

他在磨石上磨快了他的刀刃。不适合

He sharpened the edge of his knife on a grindstone.

他在磨石上磨快了他的刀刃。

Gilardino has his nose to the grindstone and is working towards his next goal for A.C.

吉拉迪诺非常辛苦的工作，为了下一个米兰的进球。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。