Odontolith
[醫] 牙垢, 牙積石
??? 情景例句
Oh, and, Robbie ...
噢 還有 Robbie……
Have a nice day.
祝您好。
The self-discipline required to drag myself out of bed eleven minutes earlier than usual was considerable.
這就要求我比平時早11分鐘把自己從床上拽起來，這種自我約束是很艱苦的。