If something is a must, it’s essential or required. This is using must as a noun. If you're visiting London by yourself, a map is a must. Or you come to Taipei, the Nation Palace Museum is a must.
If something is a must, it’s essential or required. This is using must as a noun. If you're visiting London by yourself, a map is a must. Or you come to Taipei, the Nation Palace Museum is a must.