您要查找的是不是：
- 铃铛能管用吗? Saved by the bell?
- 能 energy
- 吗 morphine
- 不能 cannot
- 五千字，不是也很管用吗? I kept to 5,000 characters, and they were enough.
- 才能 talent
- 这种洗涤剂（对那块污斑）管用吗? Did the cleaning fluid work (on that stain)? ie Did it remove it?
- 只能 not having any other choice; obliged to do sth
- 我给你的安眠药片怎么样?难道他们不管用吗? What about the sleeping pills I gave you? Don't they work?
- 铃铛 small bell
- 能干 capable
- 是吗 is that right
- 不能不 cannot but
- 不能使用 out of commission
- 你好吗？ How are you?
- 能接受 receptiblity
- 都能 can both
- 能达到 carry
- 能理解 apprehensibility
- 不能确定 be uncertain of
