In unsuccessful transmission experiments the causative agent could not be passed through bacteria-retaining filters . 在失败的传染实验中，致病因子不能通过细菌滤器。
He had been a small, dapper man, successful in business when he was lucky and unsuccessful when he was not . 他身材瘦小，干净利落，交好运时生意兴隆，倒霉时买卖萧条。
Because this fact was no recognized, the early magnetic prospecting for iron deposits was spectacularly unsuccessful . 由于不了解这个事实，因此早期为寻找铁矿进行磁法勘深，遭到了惊人的失败。
For conifers which do not form an abscission layer at the base of the cone, shakers have been partially or completely unsuccessful . 对于球果基部不能形成脱离层的针叶树，摇树机的作用不大，或者完全不起作用。
"where are you going, daughter?" he asked, with a rather unsuccessful attempt to conceal his fear, distress, and "smoldering anger" . “你到哪里去，孩子？”他问，要想掩饰他的恐惧、忧虑和郁积的怒气，但是掩饰不了。
All unsuccessful login attempts are logged 所有不成功的登录尝试都被写入日志。
An unsuccessful attack brings cries of " butcher " 无成效的进攻易被讥为“屠夫” 。
Are unsuccessful bidders notified of the tender result 有否知会落选者投标结果？
Are unsuccessful applicants notified of the result 有否记录申请人的评审资料？
And behind every unsuccessful man , there are two 每个不成功男人的背后,都有两个
