说明: 1. be absent from…. 缺席,不在 2. absence of mind(=being absent-minded) 心不在焉 3. absorb(=take up the attention of)吸引…的注意力(被动语态):be absorbed in 全神贯注于…近:be engrossed in ; be lost in ; be rapt in ;be concentrated on ; be focused on ; be centered on 4. (be) a
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