If you are taking medication regularly, you should make sure you have sufficient supply when traveling.

如果你正在定时服药，那么在外出旅游时，你应该随身携带所需药品。

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Have a sufficient supply of canned or dehydrated food, powdered milk, and canned juices for at least 72 hours.

准备足够72小时之用的听装食品或脱水食品、奶粉，以及听装果汁。

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The US looks as though it could be self-sufficient in gas supply for more than 50 years, which means that the Qataris will have even more LNG to sell into the Pacific Basin.

美国自认为可以自足天然气至少50年，这意味着更多卡塔尔人液化天然气将被销往太平洋盆地。

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The earth may have sufficient oil to supply our needs for centuries to come.

FORBES: Fact and Comment

But some analysts question whether Russia will have sufficient reserves to supply the gas pipeline, given the expected decline in its production over the next 20 years and the lack of investment in new fields since the collapse of the Soviet Union in 1991.

BBC: Struggle for Central Asian energy riches

It also wants the UK to be more self-sufficient for its energy, so it doesn't have to rely on other countries to supply our power and is less dependent on volatile and increasingly expensive global gas and oil prices.

BBC: Energy bill Q&A