The official statistics on the consumption of hard drugs or alcohol, don’t begin to give a fair representation of the issue.

官方统计学者对这药物成瘾或是酒精饮用，并不被清楚地视为是问题发生的原因。

It is impossible to think clearly on the subject without this theory as a part of one's apparatus of thought.

有这个理论作为个人的思维工具的部分， 就不可能清楚地思考这个问题。

I'm not sure they've clearly thought through the impact of their actions, but they just don't want to touch them.

我不确定他们是否清楚地考虑过自己行为的影响，但他们只是不想碰它们。

Or if you're not sure what someone means, you might say 'so what exactly are you saying? I'm not sure I understand you clearly'.

或者如果你不确定某人的意思，你可以说“那么你在说什么？我不确定我清楚地理解你的意思”。

What it was she did not know but she listened desperately, her eyes on his brown face, hoping to hear words that would dissipate her fears.

那到底是什么问题，她还不清楚，只得绝望地听着，凝望着他黝黑的面孔，但愿能听到使这种恐怕最终消释的文。