annul GREGMAT专八

1.The judge annulled the contract because one of the signers was too young.

由于签署人中有位年纪太轻, 法官宣告合同无效。

2.But when some extra carbon sources, such as glucose or gooey, were added into soils, the soil fungistasis to Trichodrema spp. could be annulled partly, even completely.

另外，将葡萄糖或糖额外碳源与木霉孢子同时添加到土壤中时，土壤抑真菌用也能够很好地被解除。