✅ 同义词
🗣️ 情景例句
Thank you.
谢谢。
Step after step the ladder is ascended.
按部就班，循序渐进。
Once we get down to the oil, it usually flows to the surface because great pressure,
一旦到达油层，石油就会由于地下巨大的压力流到地面上来，