[求譯] BBC一問...

[kentano (健坦羅)]

When it comes to vitamins, it appears you could have too much of a good
thing, say researchers who report a link between their use and higher death
rates among older women.

特別不懂 When it comes to vitamins 這裡要怎麼翻? 然後後面用了 could have
是表示不可能嗎?
謝謝~

--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 211.72.122.66
→ BLUEMILTON:常用片語when it comes to N/Ving, 提到N/Ving...
→ SaraV:我比較想問 為什麼appears後面沒有that?
推 towierc:it appears (that) you could have too much of a good th
→ dunchee:http://www.ldoceonline.com/dictionary/come_1
→ dunchee:先找 come to (phrasal verb) 然後 -> 7 ...
→ dunchee:http://www.ldoceonline.com/dictionary/could
→ dunchee:-> 2 ...       原句子裡頭的have是普通動詞