1. Trying hard not to hear, but they talk so loud. Their piercing sounds fill my ears, try to fill me with doubt. Ŭ����ȥ����������˵���������ܴ����Ǵ̶������������ҵĶ��䣬��ͼ���ҳ������ɡ�
2. I know this is not always true. Sometimes, they get bullied and insulted, and it is like a knife piercing my heart. ��֪���Ⲣ��������ġ���ʱ���ǻ����۸��������裬�����¾���������������һ����
3. However high-explosive bombs are ideal when attacking an enemy base, while torpedoes and armour-piercing bombs are virtually useless. Ȼ����ըҩը��������ĵ��������˻��ص�ʱ����ʱ�����ʹ���ը����ʵ�����á�
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adj.
1. having or demonstrating ability to recognize or draw fine distinctions
2. having or emitting a high-pitched and sharp tone or tones
3. as physically painful as if caused by a sharp instrument
4. suitable for cutting or piercing
5. loud and sharp