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