原文出自CNN雜誌, 其中有句是這樣:
We're not quite sure why they're pink in color. When they're dead,
they become white in color. So we think that the pink color may be
sort of a blushing effect, that that's how they regulate their internal heat.
最後一句 "that that's how they ..." 中，
1. 第一個that是不是指前一句 "sort of a blushing effect" ?
2. "that that's how they..." 這句能否變成 "that's how they...."
(省略第一個that)
謝謝.

第一個that是同上句think that 這種作用的that: think that(that's how...)that's how的that才是指blushing effect