上下一心

Explanation: Up and down of one mind. 　　Usage: Predicate; as predicate, attributive; with commendatory 　　Source: Qin Xun Kuang "Xunzi Fu country": "of one mind, three armed with force, with far give very war, they can not." Thesaurus:  (said of military troops) to enjoy numerical superiority, a sure card, Many hands make light work., a large number of mounted and foot soldiers, the broad expanse of the ocean Antonym Group:  Yibingyizu, 1 into a brigade, Single-handedly, weak force, go it alone, Horse Danqiang, single-handed; go it alone, Alone, isolated force fight bravely