项目经理把部分工作移交给助理处理。

The project manager ___off-loaded some tasks to his assistant.

他把旧书捐给了图书馆。

He ___offloaded his old books by donating them to the library.

他在被防守队员包围前迅速将球传给了队友。

He quickly ___offloaded the ball to his teammate before being surrounded by defenders.