buckle

n. 皮带扣, 扣子
vt. 扣住, 使弯曲
vi. 扣住, 变弯曲, 屈服
【机】 剥砂面

动词过去式:buckled 过去分词:buckled 现在分词:buckling 第三人称单数:buckles 

buck.le

n.（名词）
A clasp for fastening two ends, as of straps or a belt, in which a device attached to one of the ends is fitted or coupled to the other.
搭扣，搭钩，扣子：用来扣住皮带的两端
An ornament that resembles this clasp, such as a metal square on a shoe or hat.
扣形饰物：如鞋帽上的金属片，做成扣子形状，作装饰用
An instance of bending, warping, or crumpling; a bend or bulge.
弯曲，褶皱；鼓胀
v.（动词）
buck.led,buck.ling,buck.les
v.tr.（及物动词）
To fasten with a buckle.
用扣扣紧
To cause to bend, warp, or crumple.
使…弯，使皱
v.intr.（不及物动词）
To become fastened with a buckle.
用扣扣紧了的
To bend, warp, or crumple, as under pressure or heat.
由于受压或受热而弯曲，起皱
To give way; collapse:
屈服；崩溃：
例句：
My knees buckled with fear.
我害怕得双膝都直不起来了

To succumb, as to exhaustion or authority; give in:
让步，屈服：由于精疲力竭或由于权威而屈服；让步：
例句：
finally buckled under the excessive demands of the job.
最终被过量的工作压垮了


<常用词组>buckle down
To apply oneself with determination.
全力以赴
buckle up
To use a safety belt, especially in an automobile.
系安全带：系上安全带，尤指在汽车内
来源：
Middle English bokel
中古英语 bokel
from Old French boucle
源自 古法语 boucle
from Latin buccula [cheek strap of a helmet] [diminutive of] bucca [cheek]
源自 拉丁语 buccula [头盔脸颊边的带子] [] bucca的小后缀 [脸颊]