2mってどれくらい?
https://think-vmd.com/works/eyJpdiI6Im1NXC93UUNmYXBJMEJmYVNtUkc1eEZBPT0iLCJ2YWx1ZSI6IkI5UHRBQW9XSllsTFh1TFBOcDk5bkE9PSIsIm1hYyI6IjViYmU2NGJhYzI3ZDEwMjRmMTIwMzJlYWI4OWIwNTVlNjQwNGMxNDU2NDZkMjI2ZmExMmQ0NWUzOTJhOTI2NTgifQ==