D

大部分dàbùfēn - most of the

我大部分时间都会在这里wǒ dàbùfēn shíjiān dōu huì zài zhèlǐ

掉diào - fall out

他袋子里的东西掉了一地tā dàizǐ lǐ de dōngxī diàole yī dì

NOTE: 一地yī dì means the ground, not 'de' the grammar point

调查diàochá - investigate