with obj.
1
- drain (someone) of their physical or mental resources; tire out使精疲力竭：
her day out had exhausted her
一天的出游使她精疲力竭
as adj. exhausting it had been a long and exhausting day.那是十分漫长, 让人疲惫不堪的一天。
2
- use up (resources or reserves) completely用完, 用光, 耗尽（资源, 储备物）：
the country has exhausted its treasury reserves.
该国的财源已被耗尽。
2.1
- expound on, write about, or explore (a subject or options) so fully that there is nothing further to be said or discovered详尽无遗地论述（或探讨）（某一题目或各种选项）：
she seemed to have exhausted all permissible topics of conversation.
她似乎已将能谈的话题都谈了。
3
- expel (gas or steam) from or into a particular place排放, 排出（气体, 蒸汽）。
mass noun
1- waste gases or air expelled from an engine, turbine, or other machine in the course of its operation（排出的）废气：
buses spewing out black clouds of exhaust
喷着团团黑色浓烟的公共汽车
as modifier exhaust fumes.废气。
1.1
- count noun the system through which such gases are expelled排气系统：
as modifier an exhaust pipe.排气管。
派生词
exhauster
nounexhaustibility
/-təˈbɪlətɪ/ nounexhaustible
adjectiveexhaustingly
adverb词源
mid 16th cent. （in the general sense 'draw off or out'）： from Latin exhaust- 'drained out', from the verb exhaurire, from ex- 'out'+haurire 'draw (water), drain'.