first position短语⁴⁵³⁹⁵ 基本例句 第一姿势 Assume that at the beginning thee- screen contains80 spaces and the cursor is placed at the first position to the left. 假定一开始时电子屏显示80个空格,并且光标放置在左边第一位。 hysbz To take an accurate reading, first position the green marker directly over the artery on the inside of your arm. 采取正确阅读,首位绿色标记的动脉内直接对你手臂。 vvcha