Sometimes I hardly dare open my mouth.

有时我几乎不敢开口说话。

《柯林斯英汉双解大词典》

But the moon gave far too much light, I didn't dare open a window.

但是因为月亮太亮了，我不敢打开窗子。

youdao

In your class, you taught me courage, I never dare open mouth of a boy to speak English, starting in your class trying to learn spoken English.

在你的课堂上，你教会了我勇敢，让我一个从来都不敢张口说英语的男孩，在你的课上开始试着学习英语口语了。

youdao