为什么蝙蝠是唯一能真正飞行的哺乳动物？

(used after an attribute when it modifies a noun)

flight

genuine; real; true

(used in combination with 才[cai2]) it is only if ... (that one can ...) (as in 只有通過治療才能痊愈|只有通过治疗才能痊愈[zhi3 you3 tong1 guo4 zhi4 liao2 cai2 neng2 quan2 yu4] "the only way to cure it is with therapy")

ability

apart from; besides; in addition to (used to exclude, as in 除了他，誰也沒來|除了他，谁也没来[chu2 le5 ta1 , shei2 ye3 mei2 lai2] "apart from him, nobody came", or to include, as in 除了英語，他也會法語|除了英语，他也会法语[chu2 le5 Ying1 yu3 , ta1 ye3 hui4 Fa3 yu3] "in addition to English, he also knows French")

continuously; always; all the way through

to grasp (often fig.)

to win (a prize or lottery)

the rest

might possibly

only; sole

how

probability

fervor