Sliding valve
[化] 滑阀
🧩 词语组成解析
a. 滑行的, 变化的\\n[机] 滑动
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
What you're saying is, in order for this center to succeed,
你刚才所说的意思是为了使中心能成功，
Button holes are very hard to sew.
要缝钮扣洞非常难。
Lucy and Wei Hua meet outside Lucy's house.)
（露茜和魏华在露茜家外面相遇。）