Coelostat
n. [天]定天鏡( 觀測或拍攝天體時鏡面與地軸一同轉動可使圖像固定不動)
??? 情景例句
I have a lot of work to do to get ready for tomorrow.
我得為明天做許多準備工作。
Oh, half-and-half, you know.
馬馬虎虎。
He's not in his office at the moment.
他現在不在辦公室里，