单词:cation exchange resin
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[00:04.24]Mommo, here's your-- What are you doing? 奶奶 给你 你在做什么? [00:06.08]Preventing alien abduction, that's what l'm doing. 我在准备应对被外星人拐骗 [00:11.16]Thank you. 谢谢 [00:16.56]Dang crabgrass. 该死的草 [00
Education Report - American Documents the Countrys First Exchange Students from China This the VOA Special English Education Report. Many thousands of Chinese are studying at schools in the United States. And writer Liel Leibovitz says the students a
很久不见的好友Lisa, Karen和Gina一起吃饭。三个人都说,现在手头很紧,彼此交换勤俭持家的经验。Gina说,她们家实行三十天规则,想买什么东西,先要等上三十天,如果三十天过后还觉得需要
Tree climbing: Part 1 NB: This is not an accurate word-for-word transcript Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today Im joined by Kate. Now in todays programme and in next weeks programme were talking about
Childhood and Poetry One time, investigating in the backyard of our house in Temuco the tiny objects and minuscule beings of my world, I came upon a hole in one of the boards of the fence. I looked through the hole and saw a landscape like that behin
LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin