buckled
['bʌkəld]
adj.
有扣的;
v.
用搭扣扣紧( buckle的过去式和过去分词 );
（使）变形，弯曲;
双腿发软;
（被）压垮，压弯;
例句:
-
My left knee buckled and I went back down.
来自THETIMES
-
Mcanally's knees buckled and he crumpled down onto the floor.
麦卡纳利双膝发软，瘫倒在地板上。
-
I just buckled down and got on with playing.
我干脆静下心来继续玩。
-
He has buckled down to work in the reserves.
他已经安心在预备役部队服役。
-
He'd have buckled there last year: not this.
来自THETIMES
-
We think we are looking at some of those buckled plates.
来自SA