English translation of underlined words

1. Signs, there are no signs of danger entering this room.

2. Sign, the sign on the wall reads "No Smoking"

3. Signal, he whistled to call us, and we signaled each other to remain silent.

4. Signals, signals can be expressed through flags, lights, and gunshots.

5. Symbol, in China, brides usually wear red as a symbol of good luck.

6. Recognition, I lost the key in the garden, but luckily my mother picked it up.

7. Spot, she is wearing a white embellished dress.

8. A fire broke out at the venue, and three fire trucks rushed to the scene immediately.

9. Difficult. It is extremely difficult for miners to endure the harsh conditions in the mines.

10. Difficult. Moving to London is indeed a difficult decision.

11. Tough, it’s time to take tough measures against drunk drivers.

12. At first, Roger started to draw, but after a while he lost interest.

13. Taking up (space), we should move the books out of the way in the office.

14. Occupy, the long-distance runner is standing on the starting line.