●deliberate on/upon 。仔细研究，审议 ●Adv.deliberately ●N.deliberation熟思，从容，商议，考虑 ⚫ deliberate on/upon ⚫ 仔细研究, 审议 ⚫ Adv. deliberately ⚫ N. deliberation熟思, 从容, 商议, 考虑