词汇	guarantee water quality
释义	guarantee water quality 水质保证
随便看	The sun sends out light and warmth the sun set The sunset glow is very beautiful The sunset has tinted the sky with pink The sun set in a blaze of glory the sunset of an empire the sunset of life The sunset rivals the sunrise in beauty The sun sets the sunset sky the sun sets on the sun sets on sth The sunset tinted the hut T h e s u n s h a i n e i s p r e t t y T h e s u n s h a i n e i s p r e t t y..... the sunshine the sun shine The sun shine all alike The sunshine bodes well for our barbecue The sun shine bright in the beautiful city thesunshine coast THE SUN SHINE IN CALIFORNIA The sunshine is dazzling the sunshine of her smile the sunshine of socialism