If, however, you are unsure which style of swimsuit to choose, let 21st Century help you make the right choice to make a splash this summer.

但如果你不确定该选择哪款泳衣，那就让《21世纪英文报》帮你做出正确选择吧，让你成为今夏焦点。

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However, if your tax situation is at all complicated, or you're at all unsure of what you need to report, then doing your own taxes can end up costing you if you miss something.

但是如果你纳税情况比较复杂，或者你根本拿不准什么该报什么不该报，那么当你报税时遗漏了什么东西，你就因小失大了。

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If you are still unsure however, go for brands that are known for producing quality toys for infants.

如果您仍不清楚，但走品牌是众所周知的，为生产优质玩具婴幼儿。

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The country, however, is unsure how much reform it wants.

ECONOMIST: After ten years, democracy stirs

Despite all this optimism, however, CMOs remain unsure about one fundamental component of their marketing campaigns.

FORBES: CMOs Optimistic, But Social Media Disconnect Remains

With that being a T-Mobile exclusive for now, however, we're unsure that it'll be the recipient of so much pomp and circumstance.

ENGADGET: Samsung set to reveal next US Galaxy device on August 15th