Rtecs
化學物質毒性影響的登記
??? 情景例句
How many karats do you want?
你要幾克拉的？
Eye for eye and tooth for tooth.
以牙還牙，以眼還眼。
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。