Unless Absolutely Necessary的意思|示意

Mr Obama told the troops that he would not risk their lives unless it was absolutely necessary. In that case, he said, "the United States of America will have your back."

奥巴马表示除非绝对必要，否则他不会冒险牺牲将士的生命。

Don't take this medicine unless it's absolutely necessary.

非万不得已不要用这种药。

But even that isn't guaranteed to prevent cancer-tumors can still develop in the tissue left behind-and it's not the sort of procedure anyone would undergo unless it seemed absolutely necessary.

但即使这么做也不能保证一劳永逸——肿瘤细胞可能在残留的组织细胞中悄然生长——要不是别无他法，谁会采取这种方式呢？

Please, don't extract the tooth unless it is absolutely necessary.

除非有必要，请你不要拔牙。

Therefore, unless one is absolutely certain of the diagnosis, a visit to a health care provider experienced in women's health is necessary.

因此，除非是绝对的诊断，对健康护理提供者的妇女的健康是必要的访问一定经验。

The study concluded that this was because people didn't go outdoors in winter unless it was absolutely necessary, and if they did, they dressed properly.

研究得出的结论是，在冬天人们除非绝对必须轻易不到户外去，如果要去的话，也须穿上合适的衣物。