Calculus supragingival
[醫] 齦上結石
?? 詞語組成解析
calculus
['k?lkj?l?s]
n. [醫]結石，石，積石，牙垢;[數]運算，演算，微積分（學）;
ule,ulus 后綴;表”小,少”#詞根助記：calc石頭(古時候用石頭來計算)##calc 石灰,石頭#詞根助記：calc石頭(古時候用石頭來計算)
??? 情景例句
And how's Marge?
Marge，怎么樣？
How much is the rent for a month?
每月租金多少？
while others rub their hands over his skin to the accompaniment of a monotonous and soothing chant.
其他人唱著單調的歌聲用手撫摸象的皮膚。