Translation of "therein" into Tagalog

He was to open this safe and freely use the precious things which were stored therein.

Kailangan niyang buksan ang kaha de yerong ito at buong layang gamitin ang mahahalagang bagay na nakatago doon.

Furthermore, flu viruses also infect animals, and therein lies a problem for humans.

Bukod dito, dumadapo rin sa mga hayop ang mga virus ng trangkaso, at nagdudulot ito ng problema.

But, sad to say, not all are, and therein lies the problem.

Subalit nakalulungkot, hindi lahat, at diyan pumapasok ang problema.