口腔: oral cavity...
往来: dealings, contacts, to go back and forth...
铃: (small) bell...
不如说: better say, would rather say...
测算: to take measurements and calculate...
尽: to use up, to exhaust, to end, to finish, to the utmost, exhausted, finished, to the limit (of sth), all, entirely...
薄弱: weak, frail...
探亲: to go home to visit one's family...
意图: intent, intention, to intend...
进口: to import, imported, entrance, inlet (for the intake of air, water etc)...
