But for HBV, researchers know relatively little of the immune processes that get into gear when the virus strikes.

但对于乙型肝炎病毒，研究人员对病毒攻击时免疫系统的轮番处理机制的免疫相关过程知之甚少。

youdao

It has always been hard to get this car into first gear, and now the clutch seems to be slipping.

这辆车一直很难换到第一档，现在离合器也好像要打滑了。

youdao

If possible, get out into the country where streetlights and neon signs are few and far between. Just be sure to pack a flashlight for navigating your gear in the dark.

如果可能的话，最好到路灯和霓虹灯都很少的乡下去拍摄，不过要记得带手电筒以便于在黑暗中操作。

youdao

It was only last September too that the Tories labelled the UK the sick man of cybersecurity and demanded an overhaul of a system that had barely had time to get into gear.

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She told the BBC News website: "You can't sleep because the traffic keeps moving on a couple of inches and everyone starts beeping their horns and you have to wake up and get into gear and move on".

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While other designers were concerned with selling the next whizzy thing, John's mission was helping people get into making music gear themselves.

ENGADGET: Music Thing: Paia Synth Kits