請問一下
scientists observe active volcanoes to obtain information that might help predict the timing and intensity of eruptions.
.....help在此句是動詞那他為什麼後面又接predict動詞呢??如果predict在此處不是動詞 那是?且意思是?
importing unskilled workers helps fill menial jobs at low wages, but these immigrants also impose substantial costs, mainly on welfare.
......這句的問題也一樣 為什麼help後方又接fill動詞呢
如果fill在此處不是動詞 那是?且意思是??