be ungrateful是什么意思？

• mind
• cheese
• general
• disappointed
• searches
• amazing
• PEGGING
• rice
• brat
• repeat
• algiers
• peeping
• narrow
• crayon
• tomato
• silver
• organizations
• vehicle
• 权限英文
• panicked
• scared
• emergency
• autumn
• giraffe
• front
• predict
• aspect
• PAXLOVID怎么读
• 参数英文
• candy

• banger
• fiercely
• dragon
• committing
• supper
• polite
• 局外人英文
• pear
• 领域英语
• passage
• fake
• passage
• prompt
• lesson
• satisfaction
• bothering
• various
• BARRIE
• 队长的英文
• saturday
• conflict
• 旋律的英文
• 实施英文
• erased
• 抛弃英文
• 分配英文
• 缺陷英文
• default
• 纪念品英语
• begins

• 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
• on top of
• once and for all
• once upon a time
• on order
• on paper
• on record
• on the quiet