Flagman
n. 旗手, 信号旗手, 平交道看守
✅ 同义词
🗣️ 情景例句
You'll need to hurry up, or you'll miss the train.
你得快点，否则赶不上火车。
It is not how long but how well we live.
问题不是活得长不长而是活得好不好。
It is bacteria that have generated the oxygen we breathe on earth.
正是细菌生产出我们在地球上呼吸的氧气。