不要踩上：阻止或防止（某人或某物）站在（某物）上。
保持减重：保持体重低于以前的体重，不再恢复体重。
避免谈论：不谈论（某事）。
阻止谈论：阻止（某人）谈论（某事）。
keep off //
动词 to stay or cause to stay at a distance (from) 与......保持距离; 引发与......保持距离
让开
... keep pace with 与……同步前进 keep off 避开 keep back 隐瞒（信息），拒不告诉；保留，储存 ...
... put up 建造，支起，搭起;张贴;进行(抵抗等);提供，提名，提出;提高(价格、速度);为…提供事宿，投宿 keep off (使)不接近，(使)让开 keep to 遵守，信守;坚持 ...
... 屈服;让步;递交;交上;让位于，转变为;听任支配：give in/way (to) 驱散;避开;防止，挡住;不接近：keep off 球状的;有小球的：globular ...
让开；不接近
I'm trying to keep off fatty foods.
我尽量不吃高脂肪食物。
They lit a fire to keep off wild animals.
他们点燃篝火防止野兽靠近。
It's best to keep off politics when my father's around.
我父亲在场时最好不要谈论政治。
You want to keep spinning your mandrel so that it doesn't melt off the rod and you're going to heat your bead so that it's tacky enough to roll onto the frit and pick up pieces of the glass."
VOA : special.2009.05.18
That's going to lead us very nicely into an understanding of the laws that mark off Israel's status and keep Israel distinct among the nations, which we'll be looking at on Wednesday.
这将很好的帮助我们理解,将以色列与其他国家区分开的那些法律，周四我们将讲到这个内容。
旧约导论课程节选 : 耶鲁公开课
So it's going to keep in mind the limitations, so let's start off with talking about ionization energy.
那么让我们将这些局限性记在心里，继续来讨论一下电离能。
化学原理课程节选 : 麻省理工公开课
"Mansineedof" from Sarah Jarosz; and Alison Brown's "Under The (Five) Wire" off her CD "The Company You Keep."
VOA : standard.2010.01.24
You're not. I can see what you're trying to put off, but I can see that it's justto keep people away from you.
VOA : standard.other
Cambridgeshire County Council (CCC) said cyclists and walkers should keep off the track on Thursday.
The lesson: Local market sanctuaries cannot keep off foreign companies with superb products and the right strategy.
If you blog anything about Jews or Israel you get the most appalling abuse, so on the whole I keep off that.