He answered frankly and truthfully all my questions.

坦率而真诚地回答了我的所有问题。

She looked her father straight in the eye and answered his question truthfully.

着父亲的眼睛，诚实地回答了的问题。

The discharge of hold-washings and other residues by vessels carrying noxious or corrosive goods must be conducted in compliance with the state provisions for vessel sewage discharge and shall be truthfully recorded in the logbook.

载运有毒、含腐蚀性货物的船舶，排放洗仓水和其残余物，必须按照国家有关船舶污水排放的规定进行，并如实地记入航海日志。