牌照: (business) license, vehicle license, car registration, license plate...
无聊: bored, boring, senseless...
嫌疑: suspicion, to have suspicions...
一边: one side, either side, on the one hand, on the other hand, doing while...
打岔: interruption, to interrupt (esp. talk), to change the subject...
工程师: engineer...
密码: secret code, ciphertext, password, PIN...
嘴唇: lip...
碍事: (usu used in the negative) to be of importance or to matter, to be in the way, to be a hindrance...
墓: grave, tomb, mausoleum...