frontlines是什么意思？

• satisfaction
• cloud
• volume
• 实施英文
• 来源英语
• permitted
• repeat
• lake
• droplets
• firmness
• emergency
• erased
• organizations
• ultra
• explore
• PEGGING
• disappointed
• 导师英文
• vehicle
• banger
• BARRIE
• tourist
• bombarded
• scared
• default
• 抛弃英文
• 局外人英文
• 领域英语
• rice
• predict

• juice
• amazing
• panicked
• silver
• searches
• giraffe
• PAXLOVID怎么读
• 参与者英文
• saturday
• polite
• conflict
• cheese
• 分配英文
• 流浪者英文
• ticket
• bothering
• 方案英语
• pear
• 纪念品英语
• prompt
• begins
• lycopene
• mind
• 呼吁英语
• brat
• tomato
• general
• various
• peeping
• client

• not to mention
• nothing but
• nowhere near
• on a diet
• on a scale
• on cue
• on demand
• on file
• on line
• on loan
• of a kind
• of late
• of necessity
• of no account
• of note
• of sorts
• off balance
• off the air
• off the hook
• off the record
• on the run
• on the shelf
• on the side
• on the table
• on the trot
• on thin ice
• on top