例句與造句

1. the mode of infection has not yet been clearly determined, but the discoery of this first human case of t . eansi raises questions both as to the eolution and adaptation of the parasite and on the real size of the problem
   傳染方式還沒有弄清楚，但是這個(gè)人類感染伊氏錐蟲的首個(gè)病例，提出了關(guān)于寄生蟲的進(jìn)展和特殊適應(yīng)性及這個(gè)問題的真實(shí)嚴(yán)重性兩個(gè)問題。
2. It's difficult to find modes of infection in a sentence. 用modes of infection造句挺難的