Keep

keep
keep back 隐瞒，保留；阻止，阻挡
keep down 压缩，抑制；压抑，镇压
keep off （使）不解近，（使）让开
keep to 遵守，信守；坚持
keep up （使）继续下去，（使）不停止；坚持，保持
keep pace with 与··保持同速，并驾齐驱
keep step with 与··保持同步，步调一致
keep up with 赶上，不落后于