1.So, the student of war who is unversed in the art of war of varying his plans, even though he be acquainted with the Five Advantages, will fail to make the best use of his men.

治兵不知九变之术，虽知五利，不能得人之用矣。

2.They were indeed excellent in two sciences for which I have great esteem, and wherein I am not unversed; but, at the same time, so abstracted and involved in speculation, that I never met with such disagreeable companions.

他们两门我非常尊重的科上表现出色，而我并不精通这门科；但与此同时，我又此心不焉，沉迷于思索，以致我从未遇此讨厌的伙伴。机翻

3.A distant village of blacks had furnished her with a mantle of fur and feathers, with copper ornaments, and weapons, for Korak would not permit her to go unarmed, or unversed in the use of the weapons he stole for her.

一个遥远的黑人村庄为她提供了一件毛皮和羽毛制成的斗篷、铜饰和武器，因为科拉克不允许她手无寸铁，或者不熟悉他为她偷来的武器的使用。机翻