safety check是什么意思？

• ticket
• lesson
• cheese
• maths
• front
• emergency
• committing
• begins
• 队长的英文
• silver
• erased
• fiercely
• tourist
• fake
• organizations
• passage
• reveal
• 领域英语
• aspect
• brat
• 参数英文
• droplets
• 解决方案英文
• algiers
• various
• 方案英语
• juice
• 权限英文
• bothering
• general

• repeat
• 确认英文
• prompt
• rice
• 实施英文
• candy
• crayon
• 分配英文
• searches
• vehicle
• 导师英文
• 旋律的英文
• explore
• amazing
• profile
• giraffe
• lycopene
• monitor
• narrow
• ultra
• giraffe
• 局外人英文
• satisfaction
• bombarded
• panicked
• pear
• text
• sweater
• intermission
• autumn

• elder
• elderberry
• eldercare
• elderliness
• elderly
• elders
• eldership
• eldest
• eldisine
• eldritch
• elecampane
• elect
• electable
• election
• electioneer
• electioneering
• elective
• electively
• electone
• elector
• electoral
• electorate
• Electra
• electralloy
• electress
• electret
• electric
• electrical
• electrically
• electricator