Deltoidal
a. (=deltoid)三角形的, 三角洲的
??? 情景例句
I'm experienced in IBM-PC and Great Wall computers.
我熟悉IBM-PC和長城電腦。
A clear conscience laughs at false accusations.
白日不做虧心事，夜半敲門心不驚。
Accurate, don't you think? Fortunately, I wasn't wearing it at the time.
真夠準的，是不是？幸虧我當時沒戴帽子。