Up this road from the precincts of the city two persons were walking rapidly, as if unconscious of the trying ascent - unconscious through preoccupation and not through buoyancy.
就在这条道路上，有两个人正在迅速从城区里走出来，仿佛并没有意识到走上坡路要费力似的——他们没有意识到费力不是因为他们心情愉快，而是因为他们心事重重。
Targets may include walking persons, moving vehicles, and various vessels and boats at sea.
目标包括行人、行驶车辆以及海上各种船只。
Four persons are walking, how should they go?
四人同行，应该如何走？
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