make or become less hard 使软化;使变软 [with obj.]plant extracts to soften and moisturize the skin. 用来软化湿润皮肤的植物提取物。 [no obj.]let the vegetables soften over a low heat. 让蔬菜在低热下变软一点。 ■make or become less severe 使柔和;使缓和 [no obj.]her expression softened at the sight of Diane's white face. 看到黛安苍白的脸,她的表情缓和下来。 ■[with obj.]undermine the resistance of (someone) 削弱(某人)的抵抗 the blockade appears a better weapon with which to soften them up for eventual surrender. 这道封锁线看起来是削弱他们抵抗使其最终投降的一个更好的武器。 ■[with obj.]remove mineral salts from (water) 从(水)中剔除矿物盐