stiff-arm

基本解釋

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.
儅你是在慢速度前進時犁田，你可能想要緊抓住車把，因爲透過緊抓車把的雙臂，摔車時的震動會直接傳達到鎖骨(譯者按：不太暸解本句原文的用意)。
He flexed his stiff arm slowly.
他慢慢地彎曲他那僵硬的手臂。
A bright red welt rose on his arm.
他的手臂上起了明顯的條狀紅腫。
The thought of my exams next week scares me stiff.
我一想到下星期要考試就很緊張。
He hold on to my arm with a tenacious grip.
他緊緊抓住我的手臂不放。