ReadWriteQuiz
Chinese dictionary
v.infmlpat one's own chest as an indication of vouching for something; vouch for; slap one's chest as a gesture of promise or guarantee
我敢拍胸脯打保票这不是假货。
I can absolutely guarantee that it's not a fake.
我敢拍胸脯打保票这不是假货。
I can absolutely guarantee that it's not a fake.