直接人工能分清受益的产品批别，间接人工则作为制造费用的一个组成部分。

Direct labor is easily identified with given jobs. Indirect labor, on the other hand, is not and is considered part of factory overhead.

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但苏词中还有一批叙写儿女私情、离愁别恨之作，婉约柔美，纤丽清新，别有一番风情。

But in his poems there are also themes about love and parting, written in very graceful and gentle style, with the flavour of being fresh and beautiful.

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