[ liúyīshǒu ] hold back a trick or two (in teaching a trade or skill)
Example Sentences:
1.
Remember to keep a hand free when you are on a bus . .记得留一手，留一只手来握扶手。
2.
Speak not all you know , do not all you can , believe not all you hear 话到嘴边留三分，做事之时留一手，听闻之事莫尽信。
3.
Ian ： wow , you surely have a card up your sleeve ! while we hope sunrise can get through this crisis , this is the best we can do for now 哇，你还真是有留一手的锦囊妙计呢。我想，我们除了祝福中兴百货这次能度过难关，这也是我们目前能做的最好安排了。
4.
In order to provide comprehensive training , the first tap water pipe distribution engineering training field in taiwan , located at our jhihtan water purification plant , was set up on 1 august 2005 and a japanese technical expert was invited to taiwan to teach short - term courses . 772 persons have been trained since its opening . through systematic scientific training and more diversified passing of experience , the skill of the personnel working in the tap water business will be comprehensively enhanced , and the quality of our pipe distribution work has already been greatly improved 想要练就一身好本领，不用怕师父留一手，去94年8月1日于本处直潭净水场成立了全国第一家自来水配管工程训练场，邀请日本技术专家来台短期授课，开办迄今调训772人，透过有系统的科学化训练，以及更多元的经验传承，全方位提升自来水从业人员技能，管线施工品质已大幅改善。
