Bounding pin
[机] 弹跳杆
🧩 词语组成解析
v. 跳( bound的现在分词 ); 弹回; 向上弹; 向上跳
pin
[pin]
n. 钉;别针，扣针，饰针;大头针;没价值的东西;
vt. 压住;（用钉等）钉住，钉住，别住，扣住;用障壁等)围住，关住（俚语）抓住;[军]牵制;
adj. 针的;钉的;销的;大头针的;
🗣️ 情景例句
What a thoughtful boy he is!
他是个多么体贴的男孩啊!
Some people sometimes ask me what is the secret of such a tremendous growth.
有时有人问我取得如此惊人增长的秘密是什么。
That's right. Catch a cold is something you do; have a cold is something you have.
对。“伤风”是你所做的事情；而“患感冒”则是你所经历的事情。