on the job

正从事某项工作,忙碌着;在现场

同：	[a.] on the alert, working

actively engaged in paid work
- the working population
- the ratio of working men to unemployed
- a working mother
- robots can be on the job day and night
[同] on the job, working
watchful and prepared for action
- bird watchers on the alert for a rare species
- cops were on the job and caught them red-handed
[同] on the alert, on the job

开心词场背单词

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