quiet是什么意思？

例句：

1. Talk to the infant in quiet tones whilst maintaining eye contact.

用轻声的语调和宝宝说话，要一直保持眼神的接触。

2. I prefer groups that play quiet and gentle songs.

我更喜欢演唱轻柔音乐的组合。

3. I should like to ask you to come with us for a quiet supper

我想请你和我们共进一次安静的晚餐。