The sky over the city was overspread with a heavy smog.城市上空罩上了一层烟雾.Cars cause pollution, both smog and acid rain.汽车造成的污染既有烟雾也有酸雨。The river appeared as if enveloped in smog.那条河好像笼罩在烟雾之中。attempts to reduce smog caused by t...
Cars cause pollution, both smog and acid rain.汽车造成的污染既有烟雾也有酸雨。attempts to reduce smog caused by traffic fumes旨在降低车辆尾气造成的烟雾的措施The sky over the city was overspread with a heavy smog.城市上空罩上了一层烟雾....
Though she can't talk yet, she understands what is going on.虽然她还不会说话，可发生的这一切她都懂。He says that he understands why they behaved so appallingly.他说他知道为什么他们的行为如此恶劣。She understands why I get tired and grumpy.她理解我为什么累、为什么爱发...
Security guards were stationed at the door to deal with any interlopers.门口已设警卫人员以阻止闯入的人.And found that the interlopers imitated the sounds of an adult queen.他们发现这些入侵者能模仿成年蚁后的声音.The big five were barred from merging and p...
里奥格兰德河三角洲曾是一片遍布荆棘和沼泽的荒废之地。The delta region of the Rio Grande river was a forsaken land of thickets and swamps.在三角洲挖战壕有什么用?What is the use of digging trenches in the Delta?潮汐水道 、 三角洲和冲刷扇典型地与滨外砂洲伴生在一起.Tidal channels, delta...