小曲: popular song, folk tune, ballad...
打岔: interruption, to interrupt (esp. talk), to change the subject...
着眼: to have one's eyes on (a goal), having sth in mind, to concentrate...
考古: archaeology...
刚好: just, exactly, to happen to be...
打仗: to fight a battle, to go to war...
保密: to keep sth confidential, to maintain secrecy...
刷: to select...
传输: to transmit, transmission...