They've promised a thorough inquiry into the plane crash. 他們答應對這次飛機失事進行徹底的調查。
It was a straightforward, professional session, and afterward I knew he would be thorough and believed he would finish his inquiry in a timely fashion. 會談是直率而專業的，之後我知道他會做徹底的調查，而且相信他會在合理時間內結束調查。
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