Unless he was equipped with a directional microphone, he was out of earshot.

除非给他配备一个定向扬声器，否则谁也听不见他。

《柯林斯英汉双解大词典》

Nobody can succeed easily unless he works hard.

没有人能轻易成功，除非他努力工作。

youdao

Unless he can hide his 51, he can't make himself a human.

除非他能隐藏自己的51岁，否则他无法把自己变成人类。

youdao

Unless he and his men received more supplies, they would have to leave the fort.

VOA: special.2009.08.06

STUDENT: No. Not unless he wants to break the vase into little pieces and stuff it in the corners.

学生：【听不见】,教授：不，除非它想把花瓶打成碎片,然后把它们堆到角落里。

麻省理工公开课 - 计算机科学及编程导论课程节选

So, that means he's got to make his line unless he comes up with some clever trick, the same size as the other guy.

所以,这意味着除非他想出别的好点子,否则他就必须使他那一排的规模,和对方的一样

耶鲁公开课 - 古希腊历史简介课程节选

Haim Ramon said any talks with Abbas would be fruitless unless he exerts control over militants.

NPR: Israel Apologizes, but Strikes to Continue

He was wary of labeling anything an "injury" unless he could see physical evidence.

WSJ: After Tragedy, City Suffers Second Trauma Over Victims' Fund

Unless he gets ready to play rough against his opponents, he is going to get clobbered.

CNN: WHO'S NEXT UP IN LINE?