be absorbed in 全神贯注于…
同义替换：
be engrossed in ; be lost in ; be rapt in ;be concentrated on ; be focused on ; be centered on
absorb原始涵义：
vt. 吸收 A sponge absorbs water. 海绵吸水;
吸引…的注意力，使全神贯注；占去（注意力、时间等）The game absorbed the boy completely. 这男孩完全被游戏吸引住了。
造句：
Mary was absorbed in thought.
玛丽在沉思。
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