4. My only grumble is that there isn't a non-smoking section.
我惟一的抱怨是这儿没有无烟区。
《柯林斯英汉双解大词典》
5. For myself, I do not grumble, for I am one of the lucky ones.
对于我自己，我不抱怨，因为我是幸运的人之一。
youdao
6. The lights go off, and the din of the tourists turns from a momentary grumble of protest to a greedy growl to whispered disappointment.
灯光熄灭了，一时间游客的噪声从短暂的抗议的抱怨声变成了贪婪的咆哮声，接着变成了失望的低语声。
youdao
7. "You have to grumble in life, otherwise you get trampled on," was the main reason given by almost one in six people in the land of liberty and equality.
8. While you may grumble in the privacy of your armchair, the journalists who hold the mirror up to you do so publicly and are at great risk to themselves.
