But to be clear, they are only a first step.

但需要申明的是，这些都只是第一步。

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Sequencing technology has come a long way since the Human Genome Project, but it still requires DNA to be copied millions of times, a step called amplification, and labelled with fluorescent tags.

测序技术在人类基因组计划后有了长足的进展，但是它仍然要求DNA经过一项称为“放大”的步骤，被复制几百万次，然后再用荧光标记。

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This can be a bit of a challenge for some, but here’s how to do it: take a step back, close your eyes, and just let your mind go. What would be fun to do today?

这对于有些人来说是一件很有挑战的事情.以下是解决的方法:退一步,闭上你的 眼睛,放松，今天有什么有趣的事情等待着你去做呢？

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She said it was not yet time for additional sanctions but the United States continued to believe such a step might be needed if diplomacy fails.

VOA: standard.2009.10.13

Adding a couple of advanced indicators to your trading arsenal can be a powerful step, but it is very important not to use TOO MANY indicators.

FORBES: Four-Step Plan For Trading This Market

Peace would be a crucial first step to a happier Sudan, but since neither Khartoum nor the SPLA has shown much inclination towards democracy or non-predatory governance, the country has a long way to go.

ECONOMIST: A glimmer of hope

David Clemente, a cyber security expert at Chatham House, told the BBC the government's strategy was a "promising step" - but it would be a challenge to deliver the dozens of actions listed when government spending is so tight.

BBC: GCHQ to help firms combat cybercrime