众志成城【zhòng zhì chéng chéng】
unity is strength
The people of the whole country held together and defeated the severest floods in a hundred years.
(chóng) 1. again; overlap; repeat (zhòng) 2. heavy 3. attach importance to
(chóng) [形]1、重复，重叠 (zhòng) [形]2、分量大，程度深 3、不轻视
There is no overlap between the two courses.
The luggage is too heavy for me to carry.
Social morals require us to respect the aged.