[00:00.00]Unit 4 Topic 2 I'm not sure if there are UFOs. 第四单元 话题2 我不确定有不明飞行物。
[00:08.40]robot n.机器人
[00:17.69]scientist n.科学家
[00:22.78]appear v.出现
[00:31.69]take the place of 取代,代替
[00:36.95]situation n.情况,形势
[00:42.04]repair v.&n.修理,修补
[00:51.62]machine n.机器,机械,装置
[01:00.83]truck n.卡车,运货车;车皮 v.装车;用货车运
[01:04.82]mend v.修理,修补
[01:08.82]UFO (unidentified flying object)不明飞行物
[01:24.67]toward(s) prep.向,朝,对于
[01:33.62]plate n.盘子;板;片;牌;盆子
[01:37.87]planet n.行星
[01:41.90]information n.信息
[01:46.45]mistake...for... 把……错当成……
[01:52.16]man-made adj.人造的,人工的
[01:57.21]object n.物,物体;宾语
[02:06.63]balloon n.气球
[02:11.46]call for 寻求;需要;号召,提倡
[02:16.30]alien n.外星人
[02:20.79]wake v.醒,醒来,叫醒
[02:25.33]wake up 醒来
[02:30.17]real adj.真实的,确实的
[02:39.21]example n.例子;榜样
[02:48.92]for example 例如
[02:53.84]spend...on 在……花费
[03:00.15]download v.&n.下载
[03:04.98]dictionary n.词典,字典
[03:14.86]in alphabetical order 按字母(表)顺序排列
[03:21.46]look up 查找
[03:25.83]pay attention to 注意
[03:31.38]begin with 以……开始
[03:36.00]and so on 等等
[03:40.00]write to 写信给……
[03:44.25]press v.按,压 n.新闻界,出版社
[03:48.33]button n.(电铃等的)按钮;纽扣 v.扣(纽扣)
[03:53.00]plug v.(用塞子)把……塞住 n.塞子
[03:57.00]plug in 接通(电源),把(插头)插进(插座)
[04:01.21]useless adj.无用的