Of which, 5 million are in East Malaysia.

其中500万在东马来群岛。

youdao

It consists of two geographical regions, West and East Malaysia, divided by the South China Sea.

它由东，西马来群岛两个地理区域组成，东，西马来群岛被中国南海(south china sea)所隔。

youdao

East Malaysia, consisting of the federal territory of Labuan and the states of Sabah and Sarawak, occupies the northern part of the island of Borneo, bordering Indonesia and the Sultanate of Brunei.

东马来群岛是由联邦地域中的纳闽岛和沙巴诸州还有沙捞越组成的，它占据了婆罗洲诸岛的南部，接壤着印度尼西亚和文莱。

youdao

The most notable casualty is the massive hydro-electric Bakun Dam in East Malaysia's Sarawak state.

CNN: Mahathir's Worldly Concerns

So for now the estimated 40, 000 pre-schoolers in East Malaysia will just have to stay indoors.

CNN: Why Are the Infants Dying?

But in Sarawak, East Malaysia, they may save youngsters from a deadly virus threatening the toddler population.

CNN: Why Are the Infants Dying?