useful的反义词

useful的最高级为：most useful...

This provides useful information on the type of occurrences.所有资料提供有关矿床类型的有价值材料.The latter studies are extremely useful to the analyst.后者的这些研究对于分析工作者极为有用.Combinatorial Theory is exceptionally useful in the real world.组合论在...

useful的近义词/同义词有：functional, valuable, profitable, practical, advantageous, handy, helpful, beneficial, serviceable, advantageous, good, helpful, effective, expedient, advisable, practical, valuable, beneficial, construct...

adj.有用的，有益的，有帮助的，令人满意的...

useful的比较级为：more useful...

useful的音标：useful的英式发音音标为：['ju:sfl]useful的美式发音音标为：['jusfəl]...

In business a poker face can be very useful.生意场上，不动声色会非常有用。"For heaven's sake!" Dot expostulated. "They're cheap and they're useful."“拜托！”多特反驳道，“它们又便宜又管用。”HDTV is especially useful if there are a lot of sp...

是世界上种类最多 、 分布最广的昆虫类经济动物.It is the sort on the world most, distributing the widest insect kind economic animal....

n.拉普兰人，拉普兰语...

cinetographic的音标：cinetographic的英式发音音标为：[sɪni:'tɒɡræfɪk]cinetographic的美式发音音标为：[sɪni'tɒɡræfɪk]...

chromatogram的音标：chromatogram的英式发音音标为：[krəʊ'mætəˌgræm]chromatogram的美式发音音标为：[kroʊ'mætəˌgræm]...

化学不育剂...

undesirables的音标：undesirables的英式发音音标为：[ʌndɪ'zaɪərəblz]undesirables的美式发音音标为：[ʌndɪ'zaɪərəblz]...

calendar的近义词/同义词有：almanac, daybook, chronogram, log, annals, chronicle, chronology, record, register, list, docket, agenda, slate, schedule, programme, program, catalogue。n.calendar的近义词（历法）：almanac, daybook, chronogram, ...

grew的音标：grew的英式发音音标为：[gru:]grew的美式发音音标为：[ɡru]...

earl的复数形式为：earls...

“桑树”的拼音为：sāng shù...

外部直流电源从6脚通过一千欧姆的电阻来供给负电源.Feed the negative terminal of the external dc - power supply to Pin 6 through a 1 - k Ω resistor.一千欧姆的电阻从脚3至地面来防止放大器的输入不稳定.A 1 - k Ω resistor from Pin 3 to ground prevents the noninverting input ...

n.微动同步器[调协器]，精密自动同步机...

adv.疲倦地，消沉地，厌倦地，不耐烦地...

butanediol的音标：butanediol的英式发音音标为：[bju:teɪ'ni:daɪəl]butanediol的美式发音音标为：[bjuteɪ'nidaɪəl]...