Taking and developing photos using the so-called "wet-plate" process was a meticulous, multi-step procedure that required more than one "camera operator" and lots of chemicals and equipment.
With a testing year ahead, world leaders must step up to the plate.
考验之年当前，世界领导人们必须行动起来。
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2: When our boss died in an auto accident, our number two had to step up to the plate and take over. And I'm glad to say so far he's doing a great job; things run very smoothly.