她申请了好几家公司的职位，但都遭到了拒绝。

She applied for several job positions but received multiple ___knock-backs.

公司失去重要客户是一个沉重的打击，导致项目延期。

Losing a key client was a serious ___setback that delayed the project.

她紧张地在酒吧喝了一杯威士忌压惊。

She had a quick ___shot of whiskey at the bar to calm her nerves.