moisten
/ˈmɔɪsn; `mɔɪsn/ v[I, Tn]
(cause sth to) become moist （使某物）潮湿, 湿润
His eyes moistened (with tears). 他的眼睛（给泪水）润湿了.
She moistened her lips with her tongue. 她舔湿了嘴唇.
Moisten the cloth slightly before applying the lotion. 先把布稍弄潮湿再使用此溶液.