了望

例句：

1. 1. The captain stood at the helm, watching the horizon for any signs of danger.
   船长站在舵轮旁，注视着地平线，寻找任何危险的迹象。
2. 2. The pilot carefully scanned the sky for any signs of trouble.
   飞行员仔细扫描天空，寻找任何麻烦的迹象。
3. 3. The astronaut was observing the stars from space, marveling at the vastness of the universe.
   宇航员在太空中观察星星，对宇宙的广阔感到惊奇。