1、四十 - forty英[ˈfɔːti]美[ˈfɔːrti]。
2、例句:My car does forty miles to the gallon.我的車每加侖汽油跑四十英里。He was a big man in his forties, smartly dressed in a suit and tie.他是一個四十幾歲的高大男子,穿着西服打着領帶,很精神。