Use prefixes, or suffixes , as well as any visual aids around the text you are reading. Most words have roots in either Latin or Greek, so finding the root of the word will help you figure it out.
The third one is what most people use in China
There's a MAJOR chance this is incorrect but this may say "cautionary wind". If wrong I'll check again
Hola puedes ayudar? No se Español. ¡Necesito enviar un correo electrónico a un amigo sobre "Mi viaje a España"! :0