保持用英文怎么说后面加什么介词

keep或stay等，后面具体加介词需要看使用的地方
keep [英][ki:p][美][kip]
vt.保持; 保留; 遵守; 阻止;
vi.（食品）保持新; 保持健康;
n.保持，保养; 供养，抚养; 生活，生计; 饲料；牧草;
例句：
Whatever is left over may be put into the refrigerator, where it will keep for 2-3 weeks.
剩下的东西都可以放进冰箱，可以保持两到三个星期不坏。

stay [英][steɪ][美][ste]
vt.& vi.停留; 停止; 坚持; 抑制;
vi.继续处于某种状态;
n.逗留; 延期; 倚靠; 忍耐;
例句：The Republican candidate said he would 'Work like crazy to stay ahead'.
共和党候选人说他将“拼命保持领先优势”。

keep或stay，后面加形容词

keep + 动词要加ing(V+ing)

keep + 动词要加ing(V+ing)
keep或stay，后面加形容词

保持
adj.held,
holding

n. preservation,
retention, holding, maintenance, keeping
v. hold, maintain,
keep, preserve, retain, save