Piston rod
[化] 活塞杆
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
rod
[rɑd]
n. 杆，拉杆;惩罚，体罚;（责打人用的）棍棒;手枪;
🗣️ 情景例句
I miss them.
我想念他们.
Better lose a jest than a friend.
宁可不说一句俏皮话，以免得罪朋友们。
But as the paper moved from side to side under the pen point,
由于纸在笔尖下来回运动，