stiff-arm

基本解释

When you fall at slow speeds, you might want to hang on to the handlebars, when you crash, because by sticking out a stiff arm, shock will be send-up right to your collarbone.
当你是在慢速度前进时犁田，你可能想要紧抓住车把，因为透过紧抓车把的双臂，摔车时的震动会直接传达到锁骨(译者按：不太暸解本句原文的用意)。
He flexed his stiff arm slowly.
他慢慢地弯曲他那僵硬的手臂。
A bright red welt rose on his arm.
他的手臂上起了明显的条状红肿。
The thought of my exams next week scares me stiff.
我一想到下星期要考试就很紧张。
He hold on to my arm with a tenacious grip.
他紧紧抓住我的手臂不放。