to be lost in thought or imagination
陷入思维或想象之中 (xiànrù sīwéi huò xiǎngxiàng zhī zhōng)
"He didn’t hear me because he was in a world of his own."
"他没听到我说话，因为他 在自己的世界里。" (Tā méi tīngdào wǒ shuōhuà, yīnwèi tā **zài zìjǐ de shìjiè lǐ**.)
to stop fighting and become friends again
to make something more interesting or lively
to decline in quality or condition
in strong disagreement or conflict
very jealous
to disassemble something into pieces
