Take my word for it, I'll give you a lesson that you'll remember for a long while.

相信我的话，我会给你一个教训，你会记得很久。

Toad remained a long while plunged in thought.

癞蛤蟆托德陷入沉思许久。

We see each other once in a long while.

我们偶尔见面。

For a long while he remained speechless.

他愣了半天没说话。

Berths on steamships can be booked a long while in advance.

轮船上的床位可以提前多日预订。