- nonoptional
- n.没有选择的
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
nonoptional — [spelling only] … English World dictionary
nonoptional — adj.; nonoptionally, adv. * * * … Universalium
nonoptional — adjective Not optional … Wiktionary
nonoptional — adj.; nonoptionally, adv … Useful english dictionary