Selector valve
[化] 換向閥
?? 詞語組成解析
selector
[si'lekt?]
n. 選擇者，選擇器;
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;
??? 情景例句
Harry potter was a box office smash.
《哈里波特》贏得了相當可觀的票房收入。
To come out of hibernation
從冬眠中醒來
Four days after setting out, while the Titanic was sailing across the icy water of the North Atlantic,
“泰坦尼克”起航后的第4天，它正行駛在北大西洋冰冷的海面上。