The CEO's promise of higher bonuses sounded hollow after another quarter of layoffs.

又一季裁員之後，執行長承諾提高獎金聽起來十分空洞。

Customers grew tired of the hollow apologies they received from the call center.

客戶對客服中心那些毫無誠意的空洞道歉感到厭煩。

Without a clear budget, the marketing plan presented at the meeting felt hollow.

沒有明確的預算，會議上提出的行銷計畫顯得很空洞。