单词：safety experiment
单词：safety experiment 相关文章
Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到 听力原文收集区 ，您将会获得10到30积分的奖励! Thank you！
英语广播节选
It's always fun when my brother comes to visit from New Zealand. Because he is a math and science teacher, he often thinks of interesting things to do that fascinate the children. When he heard that one of my sons does experiments in the kitchen for
英语博客 A cup of English
AILSA CHANG, HOST: We're going to take you back now to the late 1800s, when eating food in the U.S. meant taking a calculated risk. The country was growing. People were moving into cities. And industrialization gave food producers new, sometimes dang
2018年NPR美国国家公共电台10月
teacher:Good afternoon,everyone. This experiment is to start at 3 o'clock. Have you gone to the instructions? student:Yes,Sir. teacher:Ok. Now,some points for attention. First of all,pay attention to safety. Now,sign your name on the lab record. And
英语口语900句
3.3 In the Lab 在实验室 M: Good afternoon, everyone. The experiment is to start at 3:00. Have you gone through the instructions? W: Yes, sir. M: Ok, now some points for attention. First of all, pay attention to safety... Now, sign your names on t
想聊就聊
EDUCATION REPORT - Duke iPod Experiment By Nancy Steinbach Broadcast: Thursday, August 05, 2004 This is Steve Ember with the VOA Special English Education Report. Duke University in Durham, North Caro
教育与新闻