→ zofloya:launched在這應是過去分詞，不是動詞，不過這個句子有問題 02/28 21:36
→ zofloya:為什麼and後面的動詞是are? 02/28 21:37
句子： He says that his inverter recently launched underwent six years of
development and are very successful.
問題：在that之後有兩個動詞相連launched underwent，請問在這個時候underwent是以
動詞過去式做形容詞使用嗎？請問判定準則是什麼呢？煩請板上大大指導，感謝！
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 115.80.6.23