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1·Handle the vibrometer with great care.

操作震动计要小心。

2·A much older child can be taught to handle the camera with great care and shown how to use it or asked to be extremely careful with it.

年纪大一点的小孩可以告诉他拿相机要当心，展现如何应用并要供他特殊警惕。

3·Please handle this with great care. There are fragile things, inside.

请小心搬运这个，里面都是易碎品。

4·Actually, transport of bulk cargos is regular for us, but we still handle the operation and transport with great care to avoid any mistakes.

其实，公司运载这样的大件是家常便饭了，但我们的操作、运输依然严谨。