Operculum
n. 葉蓋, 鰓蓋骨\\n[醫] 蓋, 島蓋, 蓋(昆蟲), 厴(軟體動物), 鰓蓋(魚)
??? 情景例句
World-class athletes are extremely fit.
具有國際水平的運動員體格非常好。
Teach your grandmother to suck eggs.
班門弄斧。
'I have just arrive in Scotland and I'm staying at a Youth Hostel.'
“我剛到蘇格蘭，我現住在一家青年招待所。”