be sure about sth的意思|示意

对某事很确定 ... keep on doing sth 继续做某事 be sure about sth 对某事很确定 make New Year’s resolutions 制定新年打算 ...

请放心 请放心; 相信 be sure about sth ..

感到有把握或有信心 ... 拖延不走,迟迟不行动; 故意拖拉 delay purposely 感到有把握或有信心 be sure about sth 会走路; 适应新环境 be able to walk; be accustomed to new surrounding ...