She took a sip of water to moisten her dry throat.她抿了一口水，润一下发干的喉咙。His tongue even strayed out to moisten them.他甚至不知不觉地伸出舌头来舔舔嘴唇.Her eyes moisten as she listen to the sad story.听著这悲伤的故事,她的眼睛湿润了....
He used a dampener to moisten the shirts before he ironed them.在熨衬衣前,他用加湿器先湿润了一下.Her eyes moisten as she listen to the sad story.听著这悲伤的故事,她的眼睛湿润了.She took a sip of water to moisten her dry throat.她抿了一口水，润一下发干的喉咙。His tong...
More reactive are the heavier isotopes of hydrogen, deuterium and tritium.更为活跃的是氢的较重同位素, 氘和氚.Deuterium is widely used in the study of reaction mechanisms and in spectroscopic studies.氘广泛地应用于反应机理的研究和光谱分析.The substituent i...