New words：

scratch [skrætʃ]
v.划伤；挠；划破；刮坏
n.划伤；搔痒；刮（或擦、抓）的刺耳声；挠痒

Sample Sentences：

He pretended to scratch his ear.
His arms were scratched by thorns.
The cat scratched a hole in the ground.
He scratched his name on the wall with a knife.
He fell into a thorn bush and was covered with scratches.

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