And if Oswald did act alone, who gave him the orders?

如果奥斯瓦尔德真的是单独行动，那么是受谁的指使?

Germany is better placed but would be unwilling to act alone.

德国是很好的被用地但是它不愿意孤身一投。

Did the person recommended act alone or with the assistance of others?

救人者是否独力从事救援工作或由其他人士协助?

Two people are more likely to succeed than one working or thinking alone. It is better to consult than to act alone.

两个人比一工作或思想更有可能取得成功。这决策是比单独采取行动更好。

When we think of power in the United States, we usually think of the President, but he does not act alone.

当提及美国的权力，我们总是会想到总统，但是他并不是唯一一个行使权力的人。

Regardless of whether these hormones contribute to obesity and eating disorders or are affected by them, do they act alone or in concert?

不管这些激素是否会导致或影响肥胖问题和饮食失调，现在的疑问是它们是单独起作用呢还是共同起作用？