cost-efficient是什么意思？

• failure
• 权限英文
• disappointed
• 呼吁英语
• committing
• panicked
• PEGGING
• monitor
• dragon
• toxicity
• polite
• 导师英文
• predict
• 纪念品英语
• profile
• fiercely
• begins
• ultra
• searches
• 实施英文
• maths
• volume
• satisfaction
• cloud
• juice
• BARRIE
• cheese
• 领域英语
• 旋律的英文
• theatre

• scared
• aspect
• searches
• explore
• bombarded
• rice
• banger
• vehicle
• droplets
• erased
• peeping
• default
• giraffe
• prompt
• various
• repeat
• narrow
• 缺陷英文
• neck
• crayon
• 造型的英文
• client
• brat
• candy
• conflict
• sweater
• algiers
• 确认英文
• emergency
• giraffe

• isocracies
• isolates
• isolationists
• Israelis
• issuers
• isthmuses
• Italianized
• Italianizing
• Italianizes
• italicized
• italicizing
• italicizes
• itches
• itemized
• itemizing
• itemizes
• iterated
• iterating
• iterates
• itinerants
• itineraries
• itinerated
• itinerating
• itinerates
• ivories
• ivies
• jabbing
• jabbers
• jabberwockies
• jabirus