We should enrich our knowledge step by step.

His health is improving step by step.

他的健康状况正在逐步好转.

He learnt the rules of the game step by step.

他逐步学会了游戏的规则.

A step-down transformer can reduced a voltage to whatever value is desired.

降压变压器 能把电压降到所需的任何值.

Theory and Method of Step-down-stress Accelerated Life Testing.

腐蚀累积损伤理论研究与飞机结构日历寿命分析.

Mother distressed me, let me step down in water dirty, foul.

妈妈心疼我, 不让我下来踩到又脏又臭的深水里.

Blair has said he will step down as prime minister before September.

布莱尔表示,他将在今年9月之前离任.

No one can make him step down.

没人能让他放弃争论.

Everyone thought the state's premier , Peter M ü ller, would have to step down.

大家都认为州长彼得?米勒将被迫下台.

His forceful argument soon made the opposing speaker step down.

他有力的论点很快就使对方的发言者认输了.

A step-down transformer has a turns ratio less than 1.

降压变压器 的匝数比小于1.

Methods step down test and step through test in mice were used.

方法:采用小鼠跳台法和避暗法.

It was she who guided my every step in the working-class movement.

是她在工人运动中指导我的每一步行动.

" No , " he said, " Carrie's out; but won't you step in?

“ 不在, " 他说, " 嘉莉出去了, 不过请进来好 吗 ?

Your paper marks a forward step in the research.

你的报告标志着研究工作的向前发展.

It marks a forward step in human progress.

这标志着人类发展的一次进步.

We must step in any matter that does not agree with principle.

我们必须干涉任何不符合原则的事情.

For once the step-mother had nothing to say.

这一次 继母 没话说了.

Tom's step-mother allowed him to eat so much in a day.

汤姆的 继母 一天内只允许他吃这么多.

I do not seem to be able to please my step-mother and Isable; more .

看来我没办法使 继母 和 伊莎贝尔 满意.

My step-mother always gives her son an advantage over me.

我的 继母 总是使他的儿子比我占优势.