So we have to — we get the textbook and then with the textbook we recommend getting access to this six-CD set.
我们拿到这教材，并且我推荐大家使用这6张一套的cd。
2
As the single multilateral negotiating forum in the field of arms control and disarmament, the CD has been unable to conduct substantive work for six years.
作为军控与裁军领域的唯一多边谈判机构，裁谈会已连续6年未能开展实质性工作。
3
The CD-changer has six discs at the ready: waltz, swing, country, rock-and-roll, salsa, and tango.