entail strenuous effort是什么意思？

• emergency
• committing
• 分配英文
• toxicity
• text
• begins
• reveal
• scared
• firmness
• permitted
• giraffe
• brat
• default
• various
• neck
• predict
• front
• 缺陷英文
• PEGGING
• theatre
• 参与者英文
• vehicle
• repeat
• 呼吁英语
• 导师英文
• supper
• explore
• failure
• amazing
• 来源英语

• client
• 流浪者英文
• autumn
• candy
• passage
• bombarded
• droplets
• general
• volume
• 局外人英文
• passage
• intermission
• polite
• ticket
• searches
• organizations
• searches
• 旋律的英文
• disappointed
• tomato
• mind
• satisfaction
• lesson
• BARRIE
• monitor
• modernize
• sweater
• approaches
• silver
• fiercely

• Supply clothing
• Active spirit
• Block cards
• Consistent with Gra
• satellite vehicle
• protestation
• Extremely lacking
• Radialization
• philologian
• sea tide
• Reclick continuously
• protohemin
• Roman citizens