tweak /twiːk/ (tweaking,tweaked,tweaks)

• 1.  

  V-T（及物动词） If you tweak something, especially part of someone's body, you hold it between your finger and thumb and twist it or pull it. 扭; 扯

  例：

  He tweaked Guy's ear roughly.

  他粗暴地扯盖伊的耳朵。

• 2.  

  V-T（及物动词） If you tweak something such as a system or a design, you improve it by making a slight change. 稍稍改进(如系统或设计) [非正式]

  例：

  He expects the system to get even better as the engineers tweak its performance.

  他期望在工程师对该系统的性能稍加改进后，它会运行得更为良好。

• 3.  

  N-COUNT（可数名词） Tweak is also a noun. 稍稍改进

  例：

  The camera has undergone only two minor tweaks since its introduction.

  这款相机自推出以来只经过两次小的改进。