Words in Unit 1 [00:03.37]第一单元的单词 [00:06.74]a [00:07.81]一(个、件...) [00:08.88]horse [00:09.57]马 [00:10.27]foal [00:10.83]小马 [00:11.39]cow [00:11.85]母牛 [00:12.30]calf [00:13.01]小牛 [00:13.71]monkey [00:14.32]猴子...