freebien.免费的东西；免费赠券
freeadj.自由的；免费的；畅通的；没有…的；未使用的；空闲的；随意的v.释放；使自由；使摆脱；解除；使可用于(某目的)adv.免费地；自由地
free education for prospective teachers师范生免费教育
Free postage of election advertisements免费投寄选举广告
free falling polarographic oxygen sensor自由落体式极谱法氧气测定器
Freezing-point temperature storage box冰温箱
free from involvement or entanglement.从琐事、纠缠中解脱。
free association method of interrogation自由联想讯问法
Free-standing physical medicine clinic独立物理医疗诊所
free running local synchronizer oscillat自激本机同步振荡器
free-weighting matrices with timedelay时滞自由权值矩阵
Free marriage has already predominated.自由婚姻已占居了主要地位。
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