“打消念头”常见的英文表达有：
give up the idea：这是较为常用和直接的表述。例如：He finally gave up the idea of buying that expensive car.（他最终打消了买那辆昂贵汽车的想法。）
drop the idea：同样表达“放弃、打消某个想法”。例如：You should drop the idea of quitting your job; it's a good opportunity.（你应该打消辞职的念头，这是个好机会。）
abandon the thought：“abandon”有“抛弃、放弃”的意思，“abandon the thought”即“打消这个念头”。例如：She had to abandon the thought of going abroad for further study due to financial problems.（由于经济问题，她不得不打消出国深造的想法。 ）