🗣️ 情景例句
Exploring outer space is a challenge to mankind.
探索外层空间是一项向人类发出的挑战。
We continued to struggle up the steep slope of the mountain.
我们为了攀登山的陡坡，不断地倍尝辛劳。
they do not make the further intellectual
但他们没有进一步努力