flat chequered head steel wire nail

例句：

1. 1. The floor is flat and easy to clean.
   地板是平的，容易清洁。
2. 2. The table is flat and has a smooth surface.
   桌子是平的，表面光滑。
3. 3. The road is flat and easy to drive on.
   道路是平的，易于驾驶。
4. 1.The walls are chequered with red and white stripes.
   墙壁上有红白相间的条纹。
5. 2. The dress is chequered in blue and white.
   这件裙子是蓝白相间的条纹。
6. 3.The flag is chequered with stars and stripes.
   国旗上有星星和条纹。
7. 1.She held her head high and walked confidently into the room.
   她昂首阔步地走进房间。
8. 2.The doctor examined her head for a headache.
   医生检查了她的头部是否有头痛。
9. 3. He put his head down and slept soundly.
   他低头睡着了。
10. 1. Steel is stronger than iron.
    钢比铁更坚固。
11. 2. The bridge was made of steel.
    这座桥是用钢建造的。
12. 3. Steel is used to make tools and machines.
    钢被用来制造工具和机器。
13. 1. The fence is made of wire.
    这道篱笆是由铁丝制成的。
14. 2. The wires are connected together.
    这些电线是连接在一起的。
15. 3. The wires are stretched tight across the ceiling.
    电线被拉紧横跨在天花板上。