小的最近在写GMAT的OG
遇到有一题的正解长这样
Starfish, with anywhere from five to eight arms, have a strong regenerative
ability, and if one arm is lost it is quickly replaced, with the animal
sometimes overcompensating and growing an extra one or two.
想问的是这个"if one arm is lost it is quickly replaced"
请问不用逗号分开lost跟it吗?
好像都没有看过这样的写法??
感谢各位~

你现在不就看到了？直接学起来http://www.ldoceonline.com/dictionary/if_1里头有没有逗号的例句http://tinyurl.com/2t9y3o 红框部份http://tinyurl.com/ntpglea

是没错啦 但就有点错愕 不知从哪查起 感觉违背了一直以以来学过的英文逻辑XDD 感谢D大!!顺便捡到个好网站!