确切: definite, exact, precise...
钙: calcium (chemistry)...
应对: to answer, to reply, to handle, to deal with, response...
打开: to open, to show (a ticket), to turn on, to switch on...
见仁见智: opinions differ (idiom)...
天伦之乐: family love and joy, domestic bliss...
劣势: inferior, disadvantaged...
碑: a monument, an upright stone tablet, stele...
认可: to approve, approval, acknowledgment, OK...
凭证: proof, certificate, receipt, voucher...
