If you've been with someone for this length of time you'll have to ask yourself what reservations have I got?
如果你和某人生活了这么长时间,你得问一下自己,你对这段婚姻满意吗?
Instruments have been devised and can be so placed that all three elements can be recorded in different graphs.
已经设计出了一些仪器,它按照一定的安放方式就可测绘出这三种运动的曲线图。