她改用童声唱起童谣来。She lapsed into a little girl voice to deliver a nursery rhyme.英国于1971年2月15日改用十进位币制.Britain converted to decimal currency on February 15 th, 1971.他们改用活塞发动机.They use a piston engine instead....
The production of cold involves the production of liquefied gases.冷量生产涉及到液化气的生产.It involves pertrolian ( petroleum ) pollution in the Ecuadorian Amazon between 1964 and 1990.它涉及了1964年到1990年的石油污染在亚马孙河.Ankylosing Spondylit...
The fauna in the Joli Fou consists of bivalves and arenaceous forams.乔里富组内的化石主要是双壳类和砂壳有孔虫.With fecund and loose with the arenaceous qualitative soil with good drainage had better.以肥沃疏松和排水良好的砂质土壤为好.There cannot be arenace...