奉命: receive orders; act under orders 短语和例子奉命出发 be under orders to start; 奉命出国 be ordered (to go)) abroad; 奉命而来 come with a command from sb.; 奉命于危难之际 be entrusted with a mission at a critical a
出国: go abroad; leave one's native land 短语和例子出国访问 pay a visit abroad; go abroad for a visit; 出国深造 be sent to other countries for advanced studies; go abroad to continue one's studies; go abroad