BE UP TO

а. быть способным сделать что-л. I'm not up to such hard work in this hot weather. Mother hasn't been up to much recently, while her leg was bad. I'm not up to going out tonight, I have a headache. б. делать (как правило, что-л. плохое) I'd better go into the children's room and see what they're up to. That boy's been up to no good, I can tell from the look on his face. в. соответствовать (стандарту) Your latest effort isn't up to much. Your recent work has not been up to your usual standard. The new film is not up to his last one. Was the hook up to your expectations? г. зависеть от кого-л. It's up to you to keep the boy out of trouble. д. знать о чем-л. (секретном) Don't worry, I'm up to all his little tricks.