Wall bushing
[电] 穿壁套管
🧩 词语组成解析
n. 轴衬, 套管\\n[化] 衬套; 管衬; 轴瓦
🗣️ 情景例句
I haven't seen you for a long time.
很久没见了。
It's a poor mouse that has only on hole.
鼠只有一洞，必先把命送。
On motorways you can, at least, travel fairly safely at high speeds,
在公路上还好，你至少能以相当快的速度安全地向前行。