Providing the ability to use a keyword argument is not essential, but it can make code with lots of arguments a lot clearer, and is not much extra work.

提供使用关键字参数的能力不是必需的，但它可以使带有许多参数的代码变得清楚许多，而且不需要大量的额外工作。

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Although extra work is required in many situations, your ability to be flexible and solve problems is usually an asset.

尽管你在许多情况下需要额外旳工作，但你旳灵活变通和处理难题旳能力通常非常宝贵。

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Demand to have sense of responsibility, can obey the arrangement working, coordinate work extra shifts, have ability of communicate.

要求有责任心，能服从工作安排，配合加班及夜班，有一定的沟通及应变能力。

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Too often, the ability to work flexibly is a perk, an extra, something for high fliers that has to be earned, or something that's on the books, but only approved in special cases.

CNN: Bravo to Sheryl Sandberg for leaving work at 5:30

They do not have special lessons as such but meet once a month after school - rising to once a week in their third year - to learn study skills and take on extra work they would not be able to do in a whole-ability class, a recent example being chromatography in chemistry.

BBC: News | Education | Extra help for gifted pupils divides heads