Abstract methods must be qualified by the abstract keyword and must consist of a method signature only.

抽象方法必须用 abstract 关键字限定，且必须只由一个方法签名组成。

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The user name should consist of alphanumeric characters and be a valid structure for all systems within an organization so that each person only has one user name.

用户名应该由字母数字字符组成，并且对于组织内部所有的系统都应该是有效的结构，以便每个人只使用一个用户名。

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Some workflows are completely automatic, and some consist of manual tasks that must be performed by people.

有些工作流是完全自动的，而有些则由必须通过人来执行的手工任务组成。

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The measure of a soldier can fairly be said to consist of his ability to maintain the respect of his peers and his subordinates while earning it anew from his superiors.

NEWYORKER: A Soldier��s Legacy

Hatch said the task force, which he says Lott supports, would be led by Specter and consist of two other Republicans and two Democrats.

CNN: By Dana Bash/

The Times said Lehman's chief executive, RichardFuldRichard Fuld, has drawn up plans in which one public entity would be spun off and consist entirely of mortgage debt and associated risk.

FORBES: Magazine Article