Unemployment peaked well below the levels endured in past recessions and had begun to drift down.
失业率峰值也没有达到过去经济危机所经受的程度，并且已经开始缓慢下降。
These tires are a must for all drivers of 1/10 scale RC Drift cars, and all skill levels.
这些轮胎是为1 / 10规模的漂移遥控车，所有司机必须与所有技能水平。
It is shown hat the process of virtual photons shortens the lifetime of atom in excitation state, and remits in drift of energy levels of the ground state of atom.
结果表明，虚光子过程使原子处在激发态的寿命缩短，并导致原子的基态能漂移。
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