stand firm as a rock in mid-stream是什么意思？

• passage
• ultra
• 纪念品英语
• begins
• rice
• searches
• 参与者英文
• conflict
• front
• maths
• repeat
• modernize
• client
• 实施英文
• 确认英文
• monitor
• sweater
• BARRIE
• cloud
• committing
• ticket
• erased
• 来源英语
• prompt
• passage
• cheese
• approaches
• 参数英文
• default
• supper

• peeping
• PEGGING
• various
• neck
• 队长的英文
• crayon
• brat
• text
• satisfaction
• 领域英语
• 局外人英文
• 缺陷英文
• autumn
• predict
• 抛弃英文
• 导师英文
• 方案英语
• permitted
• juice
• amazing
• 分配英文
• theatre
• silver
• narrow
• fake
• disappointed
• tomato
• explore
• 解决方案英文
• lesson

• trail dust
• transform into
• transit line
• Treasury Department
• trip wire
• tune in to
• turtle shell
• tactful
• taunt
• tawny
• telltale
• thump
• torturous
• transpire
• tryst
• turbid
• unaided eye
• unbound hair
• under construction
• under pressure
• Upper World
• urban sprawl
• usher in
• unattended
• unblemished
• unfettered
• unveil