plateau

他的体重在减掉10公斤后进入了平台期。

His weight loss reached a ___plateau after losing 10 kilograms.

我们在高原上扎营，那里的景色令人叹为观止。

We set up camp on the ___plateau where the view was breathtaking.

我们在高地的平缓高原上搭帐篷过夜。

We set up our tent on the flat ___plateau of the highland for the night.