单词:enzyme-containing detergent
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[00:00.00]Unit 15 My share of the chores [00:05.69]1.Listen and practice in pairs. [00:11.65]Mrs.Davis is telling Li Meng and xiaohong about the small chores she expects them to do. [00:19.30]Mrs.Davis,is there anything you want us to do around the
This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Germanys Harald zur Hausen and Frances Luc Montagnier and Francoise Barre-Sinoussi share the 2008 Nobel Prize in Physiology or Medicine, awarded October 6th. Barre-Sin
1 whoa \wō, hō, hwō\ whoa是西部牛仔经常说的话吗?没错,Cowboys say whoa when they want their horses to slow down. 当牛仔说whoa后,他们的马就会慢下来。所以whoa的第一个意思就是:a command to stop 嘿,慢点。
A Chinese laundry detergent commercial has spurred outrage online, with many social media users accusing it of blatant racism. In a commercial for Chinas Qiaobi laundry detergent, a Chinese woman shoves the product into a black workers mouth in the m
An international group of scientists has engineered an enzyme which they say will be able to eat some of the most common plastic. It's being touted as a possible way to fight pollution. Improvements aimed at making the enzyme work more effectively ar