Parents have a legal D. obligation to ensure that their children are provided with efficient education suitable to their age.

父母有法定的职责确保孩子享有适合其年龄的有效教育。

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Strong technical force and efficient R & D team makes the victory of the machine constantly walking in front of stone machine.

雄厚的技术力量、高效的研发队伍使得升达机械不断走在石材机械前列。

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The hardware is mainly composed by 8031, A/D, and frequency counter, and the software is simple and efficient.

硬件主要以8031单片机为核心构成一个最简系统，软件简短有效。

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The Eastern shuttle was an efficient service for business people to get back and forth from NY to Boston or D.

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Teignbridge District Council said it had made the proposals in the hope of making the department more efficient by catering to those people who are assessed as being in bands A to D.

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D.s to create algorithms to estimate demand and pricing to make the service efficient.

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