absence n. 1.不在,缺席,缺勤 (opp. presence)。 2.缺乏,缺少,无。 3.心不在焉,不注意。 absencefrom (school, office) 缺(课),缺(席),缺(工),缺(勤),不在。 absence in (London) 暂离某地而在(伦敦)。 absence of mind 心不在焉,心神不定。 absence of reason 发狂。 in sb.'s absence 当某人不在时,背地里。 in the absence of 无…时,缺少…时。 leave of absence 请假,准假。 absence without leave 擅离职守。
(mountaineering) a descent of a vertical cliff or wall made by using a doubled rope that is fixed to a higher point and wrapped around the body 同义词:rappel,
lower oneself with a rope coiled around the body from a mountainside; "The ascent was easy--roping down the mountain would be much more difficult and dangerous"; "You have to learn how to abseil when you want to do technical climbing" 同义词:rappel, rope down,