ago
used to refer to a time in the past, showing how much time has passed before the present moment

之前, 以前

[副词]
double
used to suggest that something is twice as much or has twice the significance or effect

双倍, 两倍

[副词]

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used to refer to a time in the past, showing how much time has passed before the present moment
之前, 以前
used to suggest that something is twice as much or has twice the significance or effect
双倍, 两倍