and that their commissariat had no organization, but depended on irregular raids.

他们的军需供应处于无组织状态，只是靠临时抢夺来维持。

In so far as any inquiry is a secret one,

任何一项研究都涉及到保密，

It is possible that upon such an occasion a battle ensued, with the sharks being driven away or killed.

双方可能随之发生搏斗，搏斗结果是海豚赶走或咬死鲨鱼。

Many strange new means of transport have been developed in our century,

本世纪已研制出许多新奇的交通工具，

that it can hardly hope to stand up to a realistic evaluation.

以致这种估价很难指望经受住现实的考验。

and another 700 for the survivors to be reduced by half again.

剩下的一半人再过700年，才会又减少一半。