Swimming is a best exercise in summer.

在夏天游泳是最好的锻炼方式。

youdao

The supposedly worst-case losses and resultant capital needs of Cyprus's banks were calculated last summer in an exercise conducted by Pimco, the US bond fund manager.

CNN: Cyprus bank chief seeks to allay fears

And it was made worse when President Obama announced last summer that he would exercise his authority under the budget law to exempt military personnel from the cuts.

FORBES: Sequestration Threat To Defense Sector Begins To Recede

Target Ovarian Cancer, which conducted a mapping exercise of the disease this summer, also welcomed the promise of early tests.

BBC: CT scans