(astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
Ha的用法和样例：
例句
The boy is very active, ha never flays up. 这个男孩很活跃，但从来不惹麻烦。
Her sincerity has never been questioned. 她的诚意从未受到怀疑。
He has a downright pleasant manner. 他有一种令人愉快的率直态度。
"Then he's ill." "Ill? Ha! If ever I saw a gentleman in the pink?" "那么他就是病了。""病了？哈！那我怎么看见一位绅士红光满面呢？"
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