“徒劳”造句

他在书桌前徒劳地坐了一上午之后便放弃了。
After a fruitless morning sitting at his desk he had given up.

假装系统完美无疵是徒劳的。
It would be idle to pretend the system is perfect.

罪犯们徒劳地躲闪着探照灯光。
The criminals vainly sought concealment from the searchlight.

• #徒劳