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 are abundant free materials available on the internet.
因特网上有丰富的免费资料提供。
A straw shows which way the wind blows.
一叶便知秋。
There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.
泉水只能满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。