实验过程中，水从管道的裂缝缓慢渗出。

During the experiment, water slowly ___leaked from the crack in the pipe.

这种植物会分泌一种吸引昆虫的特殊物质。

This plant ___emits a special substance that attracts insects.

水从破旧的管道中慢慢渗出。

Water slowly ___leaks from the old, broken pipes.