英语翻译These opportunity costs reflect the returns available on investing in an alternative of equal timing and risk.

英语翻译these shoes [ ] my [ ] well. 英语翻译please just skip these 英语翻译Are these your apples?Are these apples____? 英语翻译These books-----------------------in the library. 英语翻译My grandma has _______________ these days. 英语翻译these days of the year 英语翻译可不可以是are these their desks? 英语翻译these people make什么什么什么? these these 英语翻译翻译：为什么是These words are important.而不是These sentences are important? 英语翻译The boy（）these difficult problems by himself 英语翻译when did these inventories purchase?有误否? 英语翻译We should pay attention to ______ ______ these flowers. 英语翻译these books help the children learn about [ ] [ ] [ ] art. 英语翻译说这一条短裤可否用these? 英语翻译they make great balls out of Neff these days 英语翻译这名话怎么翻译?These people were just alleged criminals