这个句型的意思是"忍不住，情不自禁，不可避免地"，要注意的是"help"后面要跟名词或动名词。

支持范例
1. I can't help laughing every time I think of that.
每次一想起那件事，我就会忍不住笑起来。

2. I couldn't help noticing your ring, it's beautiful.
我没法不注意到您的戒指，太漂亮了！

3. I can't help remembering how beautiful she looked.
我无法忘记她有多漂亮。

会话记忆

A: So how long have you known Mary?
那你认识玛丽多久了？

B: Only four days.
只四天。

A: Only four days! That's so short, and you seem so crazy about her.
只四天！这么短时间你就对她如此痴迷。

B: I know. I can't help thinking about her. She's always on my mind.
我知道。我无法不想她，她总在我脑海里