有些动词确实是既及物,又不及物.但及物或不及物时,意思是有区别的. 如survive,及物动词  vt. 1.在...之后仍然生存,从...中逃生  Only  two  passengers  survived  the  air-crash. 这次飞机失事只有两名乘客幸免于死. 2.比...活得长;丧失(配偶,亲人等)  She  survived  her  husband  by  twenty  years. 她丈夫去世后她又活了二十年. 不及物动词  vi. 1.活下来,幸存;残留[(+on)]  Few  survived  after  the  flood. 洪水后极少有人生还.
survive是及物还是不及物