Until the moment everyone started telling me to mellow out, I had never been tense for a single moment in my life.

直到每个人开始叫我放松那一刻，我一生中还从来没有一刻紧张过。

《柯林斯英汉双解大词典》

A model that had a single common ancestor and allowed for some gene - swapping among species was even better than a simple tree of life.

一个拥有单一共同祖先且允许物种间部分基因彼此交换的模式甚至更优于树形生命模式。

youdao

So that you can make some changes to streamline your life and create many free hours of time every single week that you never had.

因为你可以做些改变，让生活变得更加有效率，并让你每周腾出许多从未有过的空闲时间。

youdao

It felt for one long, loud bit of time like fear and sadness and life had been synthesized into a single massive group experience.

FORBES: The Night The Who Saved New York

"In Japan, women take the initiative to get married -- and the trend for them had been to focus on their career and enjoy single life, " explained Ritsuko Matsui, a prominent psychiatrist who counseled survivors of Japan's last devastating quake around Kobe in 1995, which left more than 6, 000 people dead.

CNN: Wedding bells toll in post-quake Japan

When asked in later life what her greatest single achievement was, she replied that it had come in the late 1930s, when she was 12 and raised money to help save a 17-year-old Austrian Jewish girl from the Nazis by bringing her to Britain.

WSJ: Andrew Roberts: The Genius of Thatcherism Will Endure