训练场

• 言(speech; words)RADICAL
• 川(flowing river; stream)PHONO-SEMANTIC

Training means letting instruction flow steadily like a river into the student's mind.

• 糹(silk thread; silk fiber)RADICAL
• 柬(select; letter)PHONO-SEMANTIC

Practice is like drawing silk thread, carefully selecting each strand to make it perfectly smooth.

• 土(earth; soil; land)RADICAL
• 勿(don't; must not)PHONETIC

A wide field of land sounds similar to the word for things or objects.