软件通过专用卫星线路出口。
所有的紧急出口及线路在任何时间都必须保持通畅。
All emergency exits and routes must be kept clear at all times.
您一定要保证知道这些线路,至少知道两个紧急出口的位置。
Make sure you know these routes and the locations of at least two emergency exits.
您一定要保证知道这些线路,至少知道两个紧急出口的位置。
Make sure you know these routes and the locations of at least two emergency exits.
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