in on片語KK [ɪn ɑn] /ɪn ɑn/發音片語1參與、加入、分一份Several investors want to get in on the new project.好幾位投資人都想參與這個新專案。2知情、了解內情Only three people were in on the surprise party.只有三個人知道這場驚喜派對的事。3告知、透露多與 let 連用She finally let me in on her plans to move abroad.她終於把要搬到國外的計畫告訴了我。