1
buckle sth
Please buckle your seatbelt before driving.
开车前请系好安全带。
扣上；系紧
先理解核心含义，再看它在真实句子里的用法。
扣上；系紧
to fasten something with a buckle
Please buckle your seatbelt before driving.
开车前请系好安全带。
用带扣系紧(某物)；以任何方式系紧。
To fasten (something) using a buckle (noun etymology 1, noun sense 1); hence (obsolete), to fasten (something) in any way.
使弯曲、变形或扭曲。
To cause (something) to bend, or to become distorted.
使自己致力于(某项任务或工作)；为战斗、远征等装备自己。
To apply (oneself) to, or prepare (oneself) for, a task or work; also (obsolete), to equip (oneself) for a battle, expedition, etc.
(尤指细长结构在压力下)坍塌或变形。
Of a thing (especially a slender structure under compression): to collapse or distort under physical pressure.
buckle
Base
原形
buckles
3rd person
第三人称单数
buckling
-ing
现在分词
buckled
Past
过去式
buckled
Past participle
过去分词
He buckles his seatbelt every time he gets in the car.
他每次上车都系好安全带。
She buckled her shoes before the race.
她在比赛前系好了鞋扣。
They have buckled the straps securely.
他们已经把带子扣紧了。
规则动词，过去式和过去分词加-ed。
Please buckle your seatbelt before the plane takes off.
请在飞机起飞前系好安全带。
She buckled her belt tightly around her waist.
她把腰带紧紧地扣在腰间。
He is buckling his shoes before going out.
他出门前正在系鞋扣。
Please buckle your seatbelt before driving.
开车前请系好安全带。
常用介词有onto, to, around等，表示系的位置。
She buckled the strap onto her suitcase.
她把带子扣在手提箱上。
buckle up是固定短语，特指系安全带，常用于祈使句。
Buckle up! It's the law.
系好安全带！这是法律规定。
Not this
He buckled quickly.
Use this
He buckled his belt quickly.
“buckle”作为及物动词，需要直接宾语（如his belt）来指明扣住的对象，不能单独使用。
Not this
She buckled her coat.
Use this
She buttoned her coat.
“buckle”用于扣住皮带、搭扣等，外套通常用纽扣（button）扣合，属于搭配错误。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
系好安全带
Please buckle up before we drive.
在我们开车前请系好安全带。
开始认真工作；埋头苦干
I need to buckle down and study for the exam.
我需要埋头苦干，为考试做准备。
在压力下屈服；顶不住压力
He buckled under pressure and confessed.
他在压力下屈服并坦白了。
双腿发软
My knees buckled when I heard the news.
听到这个消息时，我的双腿发软。
开始认真工作；全力以赴
If you want to pass the exam, you need to buckle down and study.
如果你想通过考试，就需要开始认真学习。
在压力下屈服；承受不住
He buckled under the pressure and admitted his mistake.
他在压力下屈服，承认了自己的错误。
系好安全带；做好准备（迎接困难）
Buckle up, because the next few months will be tough.
做好准备，接下来的几个月会很难熬。
一二，扣上我的鞋扣。
He bent down to buckle his shoe before running.
他跑步前弯下腰扣好鞋扣。
加油干，温索基，加油干！
You'll pass the exam if you buckle down and study hard.
如果你认真努力地学习，就能通过考试。
Use buckle naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住buckle：系安全带要扣上(buckle)，桥受力过度也会弯曲(buckle)。
语域：mixed 常见场景：日常（系皮带、扣安全带）、工程/物理（受压弯曲、坍塌）、口语（buckle down 开始努力）、书面/比喻（压力下屈服） buckle 作动词时含义较多，整体语域混合。日常系扣和口语化的 buckle down 比较常见；表示受压变形、坍塌或屈服时多用于工程、书面或比喻语境。请注意根据搭配和场合选择。
与 buckle /ˈbʌkəl/ 押韵的有 knuckle /ˈnʌkəl/、chuckle /ˈtʃʌkəl/、suckle /ˈsʌkəl/（均读 /ʌkəl/，拼写中含 -uckle）。tackle /ˈtækəl/、trickle /ˈtrɪkəl/、shackle /ˈʃækəl/ 也以 -ckle 结尾，但元音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.