✅ 同义词
🗣️ 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。
All right.
行。
They went through the rooms, being careful to touch nothing, as they did not want to hinder the police in their search for fingerprints.
他俩搜遍这每一个房间，小心翼翼地不接触任何东西，因为他们怕妨碍警察寻找指纹。