1·A material witness failed to appear in court.
一名重要的证人没有出庭。
2·Andrew Adams's conviction was reversed because his lawyers had failed to make use of material that would have undermined the sole prosecution witness.
安德鲁·亚当斯的律师未能充分利用可能削弱唯一原告证人证词的材料，因此定罪被撤销。
3·Make smooth raw material inspection and storage procedures and strengthen rechecking of samples for witness of raw material storage.
理顺原材料进库检验及储存，加强进库见证取样复检。
4·Urban texture, as the relatively deep material content of city formation, is the direct witness to the history of a city.
城市肌理作为城市形态中比较深层的形态物质内容，是城市历史最直观的见证。
5·They also say :If you witness your pet consuming material that you suspect might be toxic, do not hesitate to seek emergency assistance, even if you do not notice any adverse effects.
他们还表示：如果你看到你的宠物消费的材料，你怀疑可能是有毒的，不要犹豫，寻求紧急援助，即使你没有发现任何不良影响。
6·The witness produced a new material fact.
证人提供的新的实质性证明。
7·There are three types of evidence: material evidence, written evidence and witness.
证据只有三种物证、书证和人证。