earthquake n.地震

earth(地球)+quake(震动)

right way立刻；马上

right（正确的） way(路)

“挖”井

crack n.裂缝；噼啪声

谐音记忆这个单词：敲击石头发出的卡卡的声音

Sure! Here are some mnemonic techniques to help you remember the vocabulary words from Unit 4 of English Compulsory 1:

1. Abandon: Imagine a band on stage suddenly leaving their instruments behind.

2. Accommodate: Think of a cozy hotel room that can accommodate your needs.

3. Accumulate: Picture a pile of money accumulating over time.

4. Adapt: Imagine a chameleon changing its colors to adapt to its surroundings.

5. Adequate: Think of a cup that is filled to an adequate level.

6. Adolescent: Picture a teenager wearing a "No Adults Allowed" sign.

7. Affection: Imagine a person hugging a big fluffy teddy bear with affection.

8. Aggressive: Think of a lion roaring aggressively in the wild.

9. Alert: Picture a person with their eyes wide open, being alert to their surroundings.

10. Ambition: Imagine a person climbing a mountain with a sign that says "Ambition" at the top.

Remember to practice these visualizations regularly to reinforce your memory of the words. Good luck!