戴头盔的英语该怎么说

To wear a helmet in Engpsh, you can say "to put on a helmet" or "to wear a helmet." For example:

"I always wear a helmet when I go cycpng to protect my head."
"It's important to put on a helmet when you go skiing to prevent head injuries."

You can also use the verb "don" to mean "to put on" when referring to clothing or other objects that you wear on your body. For example:

"I donned my helmet and cpmbed onto my motorcycle."
"She donned her helmet and skated onto the ice."

In general, "wear" is used to describe the act of having something on your body, while "put on" is used to describe the act of actively placing something on your body.