Attach friction force是什么意思？

• approaches
• permitted
• 解决方案英文
• general
• supper
• panicked
• reveal
• 实施英文
• prompt
• lycopene
• client
• 领域英语
• saturday
• organizations
• banger
• 参与者英文
• searches
• scared
• tomato
• 来源英语
• predict
• algiers
• juice
• polite
• peeping
• giraffe
• crayon
• toxicity
• silver
• cloud

• 分配英文
• emergency
• 呼吁英语
• lake
• giraffe
• profile
• rice
• bothering
• brat
• aspect
• ticket
• various
• amazing
• 方案英语
• passage
• general
• 流浪者英文
• failure
• 抛弃英文
• autumn
• fake
• searches
• candy
• PEGGING
• front
• 确认英文
• disappointed
• PAXLOVID怎么读
• bombarded
• tourist

• take exercise
• after class
• on holiday
• Chinese New Year
• oak tree
• conker tree
• pine tree
• city flower
• a quarter to ten
• half past seven
• Night Zoo
• for a day trip
• Window of the World
• See you tomorrow
• Why not
• South America
• straight ahead
• pen friend
• be worried about
• have a bath
• take medicine
• on land