tweak

1. V-T 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

He tweaked Guy's ear roughly. 他粗暴地扯蓋伊的耳朵。

2. V-T If you tweak something such as a system or a design, you improve it by making a slight change. 稍稍改進(如系統或設計)[非正式]

He expects the system to get even better as the engineers tweak its performance. 他期望在工程師對該系統的性能稍加改進後，它會運行得更爲良好。

3. N-COUNT Tweak is also a noun. 稍稍改進

The camera has undergone only two minor tweaks since its introduction. 這款相機自推出以來衹經過兩次小的改進。