We crossed a small iron bridge over a meandering stream.我们穿过架在蜿蜒小河上的一座小铁桥。The village seemed deserted except for small boys and a meandering donkey.整个村子的人都像是逃光了,只留下了几个小男孩和一头正在游游荡荡的小毛驴.We often took a walk along the meand...
这里你应该用复数代词.Here you should use plural pronoun.这里有关于用复数来讲二维力学的简短讨论.There is a brief discussion of two dimensional mechanics in terms of complex numbers.用复数算术推导了正弦,余弦的加法公式.We derive the addition formulas for sine and cosin...