The father, however, rejoiced, for it had cut him to the heart to leave them behind alone.

然而，父亲却很高兴，因为把他们单独留下使他伤心欲绝。

youdao

All of us are not new to this picture: a successful business man tasting loneliness alone with a broken heart.

我们对于这个画面并不陌生：一位职场成功的男士带着一颗破碎的心独自品味孤独。

youdao

Drugs alone do not prevent heart attacks and stop symptoms of heart disease.

单独的药物疗法也是不能预防心脏病和缓解心脏病症状的。

youdao

Most diseases are not caused by one gene alone - there is no 'obesity gene' or 'heart disease gene' - but by the interaction of lots of genetic and environmental factors.

BBC: Has decoding the genome lived up to hype?

Glaxo plans to bring the best one into final-stage trials in thousands of patients within a year, aiming to show that adding the compound to existing regimens can prevent far more heart attacks than cholesterol-lowering drugs alone.

FORBES: Attacking Heart Attacks

Stimulating the 5-HT2C receptor alone does not appear to cause hallucinations or heart valvular problems.

FORBES: Why Does Arena's Obesity Drug Have Abuse Potential?