twist or pull (something) sharply
扭,拧
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he tweaked the boy's ear. 他拧了男孩的耳朵。
〈非正式〉 通过微调改进(机械,系统)
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engineers tweak the car's operating systems during the race. 比赛期间,机械师对这辆车的操作系统进行了改进。
a sharp twist or pull
扭,拧。
〈非正式〉 (对机械或系统所做的)微调。
"early 17th cent.: probably an alteration of dialect