Total concentration is required with no distractions.

需要全神贯注，不可有分心之事。

《柯林斯英汉双解大词典》

Listening well requires total concentration upon someone else.

认真聆听需要完全专注于他人。

youdao

Skiing at 80 miles per hour requires total concentration.

每小时80英里的滑雪需要完全专注。

youdao

Now, we're not thinking about total antibody concentration because you already have a lot of antibodies circulating within your blood and in your fluids.

现在,我们先不考虑抗体总浓度,因为你的体内已存在许多抗体,在血液以及体液中循环

耶鲁公开课 - 生物医学工程探索课程节选

Since most jobs involve an ad-hoc mix of tasks some of which require total concentration and no interruptions it's far better to give people the option of working in a communal environment OR working somewhere quiet.

BBC: The pleasures and perils of the open-plan office

When Mr Arnold first looked into it, he says, what surprised him most was not so much the total size of the positions that the bank had taken as their high concentration.

ECONOMIST: British banking