when it comes to + V-ing

结构︰

…when it comes to＋动名词／名词

说明︰

此句型意为“…一谈到…”。请注意 to 是<介系词>，后跟<动名词>，有时也可跟<名词>。

Their memory wasnt very good when it came to recalling other things, but they remembered the comet.
一谈到别的事情时，他们的记性并不是很好，但他们却记得彗星。
When it comes to making friends, you cannot be too careful.
一谈到交朋友，你再怎么小心也不为过。
When it came to the summer vacation, we all became excited.
一谈到暑假，我们大家都变兴奋了。