在这种情况下，我们最好保持冷静。

In these ___circumstances, we'd better stay calm.

她的经济状况不允许她购买新车。

Her financial ___circumstances don't allow her to buy a new car.

由于特殊的情况，会议改到了下周一。

Due to special ___circumstances, the meeting was rescheduled to next Monday.