单词	dutiful
释义	du·ti·ful (dtĭ-fəl, dy-) adj. 1. Careful to fulfill obligations. 2. Expressing or filled with a sense of obligation. duti·ful·ly adv. duti·ful·ness n.
随便看	tangent line tangent plane tangerine tangibility tangible tangibleness tangibly Tangier Tangiers tanginess tangle tangle tangled tangly tango tangolike tangoreceptor tangram Tangshan Tanguy tangy tanh Tanis tanist tanistry

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