what about giving up smoking? 为什么用giving up而不是give up

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what about giving up smoking? 为什么用giving up而不是give up

about 是介词 后面要带宾语,动词就变成动名词作宾语

what about doing sth是固定结构

abOut是介词,后加动名词

what about doing sth.=how about doing sth.译为做什么怎么样且about是介词 后用动词ing
后面用smoking是因为give up doing sth.放弃做某事