on duty造句
151. Once when Zechariah's division was on duty and he was as priest before God.
152. On the day of the attack there was only one police officer on duty providing security for the camp.
153. The company excused the watchman for falling asleep while on duty.
154. However, go up to now already a week is superabundant , the constant city that regards core management as the layer and Rong Duo did not reach the designated position walk on duty.
155. Medical authorities also recommend that every hospital offering around-the-clock emergency care should have trained stroke-treatment specialists either on duty or on call.
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