1.stretch out v. 伸出；伸直四肢

And the Egyptians will know that I am the Lord when I stretch out my hand against Egypt and bring the Israelites out of it.
我伸手攻擊埃及，將以色列人從他們中間領出來的時候，埃及人就要知道我是耶和華。

One theory suggests gliding saves energy.So researchers tested that idea using colugos—mammals from Southeast Asia that turn into giant skin sails when they stretch out their legs.
有一種理論認為滑行節省體力。因此研究人員用飛鼯猴—一種來自東南亞的哺乳動物，當它們滑行時會伸展出四肢，變成一張巨大的翼膜。

2.ought to 應該

I think I ought to cut in on what they are doing.
我認為對他們現在干的事我應當進行干預。

You ought to be ashamed of your foolish behaviour.
你應當為自己的愚蠢行為而感到羞恥。