Conical expander
[建] 圆锥扩展器
🧩 词语组成解析
a. 圆锥形的, 圆锥的\\n[计] 圆锥的
expander
[ɪk'spændə]
n. 使增大者，使身体健壮的强身器具;
🗣️ 情景例句
There is an emergency. Please send a fire engine.
这有火灾，请尽快派消防车来。
May I ask you how old you are?
我能问你多大了吗？
Annie and her brother were sent to a children's home. There the boy died.
安妮和她的弟弟被送往一家孤儿院。弟弟在孤儿院死了。