Valve cap
[化] 閥蓋
?? 詞語組成解析
valve
[v?lv]
n. 閥;真空管;（管樂器的）活栓;（心臟的）瓣膜;
vt. 裝閥于;以活門調節;
cap
[k?p]
n. 蓋;帽子;軍帽;求交運算;
vi. 脫帽致意;
vt. 覆蓋;給…戴帽;
abbr. Common Agricultural Policy （歐共體）共同農業政策;
cap 表示”頭”,”首要的”
??? 情景例句
I can't tell you how sorry I am.
我真的是很抱歉。
Then, all of a sudden, it became cloudy and began to rain.
可是突然天就變了，烏云密布并下起雨來。
It had been purchased by a local authority so that an enormous pie could be baked for an annual fair.
某地方當局買下它用來焙制一個巨大的餡餅為一年一度交易會助興。