Emily Dickinson’s letters to Susan HuntingtonDickinson, which were written over a period beginning a few years before Susan’s marriage to Emily’s brother and ending shortly before Emily’s death in 1886, outnumber her letters to anyone else. outnumber为什么是一般现在时?难道因为这是个事实? 除了法律、自然规律,还有哪些是要用一般现在时的?