他指甲刮黑板的声音非常刺耳。

The sound of his nails on the chalkboard was grating.

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The sound of his nails on the chalkboard was grating.

grating 是形容词,来自动词 grate(摩擦、发出刺耳声),表示"刺耳的、令人不快的",形容尖锐刺耳的声音让人感到不舒服。

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