Vacuum expander
[化] 真空膨胀器\\n[医] 真空膨胀器
🧩 词语组成解析
expander
[ɪk'spændə]
n. 使增大者，使身体健壮的强身器具;
🗣️ 情景例句
Morning, Philip.
早安， Philip。
A man becomes learned by asking questions.
要长学问，就得多问；多问则业精。
That's quite true.
千真万确。