N - acetylcysteine a precursor of glutathione in cells, is a thiol antioxidant.乙酰半胱氨酸是细胞内还原性谷胱甘肽的前体, 是一种含有巯基的抗氧化剂.Thus, glutathione provides important protection against many environmental hazards.谷胱甘肽因而对许多环境有害物提供了重要的保障....
“圣诞节以来物价降了4成，”他悲叹道。"Prices are down 40 per cent since Christmas," he lamented.“快一点钟了！”从幕后传来一声悲叹。It's almost one o'clock!' lamented the off-stage voice.她悲叹自己不幸的命运.She sighed over her unhappy fate....
And also , we can find Yuanxiao with both sweet and salty fillings.不过我们的元宵有甜的还有咸的呢.I had to have two fillings at the dentist's today.我今天不得不在牙科诊所补了两颗牙。...amalgam fillings.汞合金填充物I like chocolates with cream fillings v...