单词：facultative
音标：['fækәltәtiv] ；
a. 授权的, 机能上的, 才能上的, 能力上的, 兼性的, 可选择的, 任意的
[化] 兼性的
[化] 兼性的
a. of or relating to the mental faculties
a. able to exist under more than one set of conditions
s. granting a privilege or permission or power to do or not do something
a. able to exist under more than one set of conditions
s. granting a privilege or permission or power to do or not do something
词性分布：
facultative的用法和样例：
例句
- The last questions in the examination were facultative.最後的那些考题答兴不答可听自便。
词汇搭配
- facultative denitrification兼性反硝化作用...
- facultative thermophile兼性嗜热菌
- facultative pond兼性池; 兼性塘...
- facultative anaerobes[医] 兼性厌氧菌...
- facultative saprophyte兼性腐生物,兼性腐生...
- facultative parthenogenesis兼性单性生殖...
- facultative autotrophs兼性自养生物...
- facultative anaerobe兼性嫌气生物,嫌气性...
- facultative parasite兼性寄生物
- facultative aerobes[医] 兼性需氧菌...
- facultative anaerobiont兼性厌气生物...
- facultative autotroph兼性自养生物...
- facultative treaty临时分保合同...
- facultative reinsurance临时分保,临时再保险...
- facultative insurance临时保险
- facultative plant不定型植物
- facultative aerobe兼性需氧微生物,半需...
- facultative heterochromatin兼性异染色质...
- facultative bacteria兼性细菌
【反义词】
- obligate使负义务