Ballistic pendulum
[化] 冲击摆
🧩 词语组成解析
ballistic
[bə'listik]
adj. 弹道学的;发射学的;飞行物体的;
🗣️ 情景例句
He studied harder to improve his English.
他更加努力提高英语水平。
No,I wasn't .
不，我没有在这里。
but ten months later, she received a letter from a girl in Holland.
但10个月以后，她收到了荷兰一位姑娘的来信。