鸟儿在枝头欢快地啾啾鸣唱.The birds chirp merrily at the top of tree.我们像孩子一样欢快地围在一起跳舞.We danced around with childish delight.她欢快地挥手告别.She waved goodbye very gaily....
发令员鸣响起跑枪.The starter fired his starting gun.发令员把运动员召集到起跑器后面.The starter calls the runners stand behind their blocks.发令员站在选手们前面.Starter standing in front of runners....