使用牙刷去除牙垢很有帮助.The use of a toothbrush to keep tartar down is very helpful.除牙垢用带尖工具除去牙齿表面的 ( 污垢 )To remove ( tartar ) from tooth surfaces with a pointed instrument.我的牙齿上有许多牙垢.I have a lot of tartar on my teeth....
如果你孩子的体温上升，就用海绵蘸上温水轻轻地擦拭她的身体。If your child's temperature rises, sponge her down gently with tepid water.她小心翼翼地把枪擦拭干净，放进枪盒里锁好。She meticulously cleaned the gun and locked it away in its case.他那天整个下午都在擦拭银器具.He spent al...
She was my last living grandparent and I was her only grandchild.她是我祖辈中最后一位离世的,我是她惟一的外孙.A person from whom one is descended , especially if more remote than a grandparent; a forebear.繁衍后代的人, 特别是远于祖父辈; 前辈.We went to our g...