Syrian President Bashar al Assad says a U.N. proposal for a cease-fire in rebel-contested Aleppo was "worth studying." Mr. Assad says the plan would need to be worked on to achieve its goals of "returning security" to the embattled city. 叙利亚总统巴莎尔.阿萨德表示联合国关于在叛军争夺的阿勒颇市停火倡议值得研究.阿萨德先生表示该计划应认真加以执行以达成其宗旨,即把安全交还给让这座饱受战争创伤的城市._______________________________