Difficult to maintain; unstable是什么意思？

• maths
• front
• tourist
• 确认英文
• predict
• committing
• vehicle
• monitor
• explore
• 导师英文
• general
• 分配英文
• bombarded
• cheese
• brat
• algiers
• volume
• tomato
• lake
• 领域英语
• banger
• candy
• crayon
• chess翻译
• default
• 参与者英文
• dragon
• approaches
• general
• giraffe

• 参数英文
• bothering
• BARRIE
• 方案英语
• 解决方案英文
• 实施英文
• failure
• 纪念品英语
• PEGGING
• text
• intermission
• narrow
• searches
• permitted
• 权限英文
• 旋律的英文
• prompt
• rice
• panicked
• searches
• modernize
• emergency
• supper
• various
• erased
• 流浪者英文
• 抛弃英文
• organizations
• conflict
• client

• fluster
• flute
• fluted
• fluting
• flutist
• flutter
• fluty
• fluvial
• fluviatile
• fluviation
• fluviograph
• fluviolacustrine
• fluviology
• fluviomarine
• fluviomorophology
• fluvioterrestrial
• fluvisol
• fluvomycin
• flux
• fluxgate
• fluxgraph
• fluxibility
• fluxing
• fluxion
• fluxional
• fluxionary
• fluxmeter
• fluxoid
• fluxon
• fluxoturbidite