The tiger's home is in the jungle.

　　老虎棲息在叢林里。

　　We had to hack our way through the jungle.

　　我們不得不在叢林中辟路穿行。

　　The lion is the king of the jungle.

　　獅子是叢林之王。

　　Social security law and procedure remain a jungle of complex rules.

　　有關(guān)社會保障的法律和程序仍舊是個(gè)充滿錯(cuò)綜復(fù)雜的規(guī)則的危險(xiǎn)領(lǐng)域。