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But she's not deterred from approaching.
但她沒有打消念頭離開。
What she is about to do seems almost suicidal.
她要做的看上去簡直是自殺性行為。
She's feeding on tiny blood-sucking parasites, which is why the grouper allows this.
她在尋找吸血寄生蟲，石斑魚允許這樣的行為。
Nevertheless, the wrasse has to regularly vibrate her fins against the inside of his mouth just to remind him not to swallow.
然而瀨魚不得不頻繁的擺動魚鰭，拍打石斑魚的嘴，提醒她不要吞咽。
A single wrasse can eat incredible 1,200 parasites a day, and she's not fussy where she finds them.
僅一條瀨魚一天就能吃下1200條寄生蟲，她在哪里都可以找到食物。
Without this decontamination, the grouper would quickly become infested.
如果沒有這種凈化，石斑魚全身將遍布寄生蟲。
This service is so valuable that the grouper is a regular client, visiting several times a day.
這種服務太重要，石斑魚是常客。一天光顧好幾次。
