The study tested a two-vaccine combination in a "prime-boost" approach, where the first one primes the immune system to attack the HIV virus, and the second one strengthens the response.

这项研究测试了两种疫苗的组合注射，采用“启动—提高”的办法，其中第一种疫苗启动免疫系统攻击艾滋病毒，而第二种疫苗则强化这一反应。

youdao

But denying a Pakistani refuge to Mr Haqqani, the prime suspect in all suicide-bombing in Afghanistan, would still be a big boost to the NATO-led effort.

但是否认巴基斯坦对阿富汗所有自杀性爆炸袭击的主要嫌疑犯哈卡尼提供庇护，仍将会极大促进北约行动。

youdao

The presence of the prime minister was intended as a morale boost.

首相的到场本来是要激励士气的。

youdao

To get at these non-mutating parts of the virus, Nabel and his colleagues used a two-step vaccination process, called "prime-boost."

VOA: standard.2010.07.21

Mr Kerry, on an unannounced trip to Iraq, held talks with Prime Minister Nouri Maliki in a bid to boost co-operation over the Syria conflict.

BBC: Kerry presses Iraq on Iran weapons flights to Syria

Russian Prime Minister Vladimir Putin called on Wednesday for sweeping tax reforms to boost investment-led growth, while pledging to keep the rouble stable without imposing any capital controls.

FORBES: Putin Pledges Pro-Growth Tax Cuts: Or, Why Today's Russia is Far More Flexible Than the Soviet Union

But Mr Byers - who is also secretary of state for the regions - received a boost in the form of the backing of Deputy Prime Minister John Prescott who predicted his colleague would play a major part in the next stage of the government's plans for devolution into the English regions.

BBC: Sixsmith: Byers 'tore up' agreement