1.We used to see a lot of malaria at the Wangpha clinic but now with efforts of elimination and active surveillance...
used to過去一向,過去時常
They used to buy ten kilos of beef in one lump.
他們過去常買10公斤重的整塊牛肉 。
2.Drug-resistant means that the drug no longer treats the disease.
no longer不再,已不
After a time it was no longer a discomfort.
過了一陣,也就不以為苦了 。
3.He says that the clock is ticking, meaning time is running out.
run out用完;耗盡
Time is running out fot the trapped miners.
被困礦工的時間不多了 。