It is as certain as anything can be that faithful endeavor will bring expertness in the use of English.

可以肯定的是，忠实的努力将带来使用英语的专业知识。

Expertness in this might well atone for some of our awkwardness at accounts, for some of our ignorance of dynamos.

在这方面的专业知识可以很好地弥补我们在账户方面的一些尴尬， 以及我们对发电机的一些无知。

But while now upon so wide a field thus variously accomplished and with such liveliness of expertness in him, too; all this would seem to argue some uncommon vivacity of intelligence.

但是，既然他在这么广泛的领域具有多方面成就和鲜活的技艺，这一切便似乎足以证明他是个聪明过人、精力充沛之人。