Meaning of é wài:
é wài
额外
Adjective
extra; added; additional
Wǒ xū yào yī xiē é wài de shí jiān lái wán chéng zhè ge xiàng mù.
我需要一些额外的时间来完成这个项目。
I need some extra time to complete this project.
Zhè cì jiābān de shíjiān suàn zuò éwài gōngzuò.
这次加班的时间算作额外工作。
The overtime in this instance counts as added work.
Zhè xiàng rènwù xūyào éwài de zīyuán.
这项任务需要额外的资源。
This task requires additional resources.