Separate investigations by an official Japanese commission, the I.A.E.A.

日本官方委员会 I.A.E.A. 进行了单独调查。

One group in Congress favored the route through Nicaragua;in fact, two official commissions had already approved that location.

国会中的一个团体赞成通过尼加拉瓜的路线； 事实上，两个官方委员会已经批准了该地点。

" To testify" means to go to some official commission or a judge and tell what you know – tell the truth.

“作证”是指去某个官方委员会或法官面前说出你所知道的——说实话。

Further than before from the inside story, he nonetheless remained a backroom boy in a sense, beavering away in the upper chamber and on official commissions to review such hard-to-sort subjects as electoral reform and social care for the elderly.

故事以往不曾有的是，他却在某种意义上一直处在幕后，为上议院和官方委员会辛勤的工作，回顾那些难以排序的事件（比如选举改革，或是老年人的社会福利）。