I took the kids for a picnic in the park after school.放学后我带孩子们去公园野餐。They were tidying up the remains of their picnic.他们正在收拾野餐后剩下的东西。We punted up towards Grantchester and had a picnic in a meadow.我们乘坐平底长船溯河而上到格兰切斯特，在草地上举行...
Engineers said that plutonium could begin seeping from the corroded sub.工程师说钚可能会开始从遭腐蚀的潜艇往外渗透。Dangerous emissions radiate from plutonium.危险的辐射物从钚放散出来.The plutonium also could be used, however, to make nuclear weapons.钚也可...