abrasionKK [əˋbreʒən] /əˈbɹeɪʒən/發音ab- 離開、脫離+ras 刮、擦+-ion 名詞→刮掉、擦去展開收合ab-字首離開、脫離ras字根刮、擦-ion字尾名詞字面：刮掉、擦去表面被刮擦而去掉一層，即磨損或擦傷。名詞1擦傷、擦破的傷口She fell off her bike and got a nasty abrasion on her knee.她從腳踏車上摔下來，膝蓋上有一道嚴重的擦傷。2磨損、磨耗This coating protects the surface from abrasion and moisture.這層塗料可以保護表面不受磨損和潮氣影響。3磨蝕地質Coastal cliffs are slowly worn back by the abrasion of waves.海岸懸崖因海浪的磨蝕而逐漸後退。