紧急出口是建筑物中关键的逃生通道。

The emergency ___egress is a crucial escape route in the building.

请确保所有紧急出口标识清晰可见。

Please make sure all emergency ___egress signs are clearly visible.

天文学家们耐心等待火星从木星背后重新出现。

The astronomers patiently waited for the ___egress of Mars from behind Jupiter.