Most Commonly Used English in Chinese -- 拍照

拍(pāi)照(zhào)/Take a picture 

Girl: 你(nǐ)能(néng)帮(bāng)我(wǒ)拍(pāi)张(zhāng)照(zhào)片(piàn)吗(ma) / Can you help me take a picture? 

Boy: 没(méi)问(wèn)题(tí)。准(zhǔn)备(bèi)好(hǎo)了(le)吗(ma)？一(yī)，二(èr)，三(sān)，茄(qié)子(zi) / Sure. Are you ready? One, two, three, cheese!

Note:
拍照(pāi zhào) = take a picture
没问题(méi wèn tí) = no problem, sure
准备好(zhǔn bèi hǎo) = ready