1.focused on 专注于

例句:Every eye at the conference was focused on the rostrum.
代表们的眼光都集注在大会主席台上。

2.no longer 不再

例句:They no longer had him as a friend.
他们再也不把他看成朋友了。

3.due to 由于

例句:In part this attitude was due to fear of trade union and employee reactions.
在某种程度上，这一态度是由于害怕工会和雇员的反应。

4.military commanders 军事指挥官

例句:Only a handful of military commanders and tacticians have ever achieved this rigorous certification.
只有少数的军事指挥官和谋士曾经达到这一严格的认证。