中国经济去年增长7.4%，为过去二十年来最低，这一数据凸显了世界第二大经济体面临的巨大挑战。请看本报昨日的报道：

    China’s economy grew at its slowest pace in more than two decades in 2014, a performance that underscores the depth of challenges facing the world’s second-largest economy.

    Gross domestic product grew 7.4 percent in 2014 to reach 63.65 trillion yuan (US$10.4 trillion), compared to the previous year, the National Bureau of Statistics said Tuesday. That’s below the government’s 7.5 percent goal and is the slowest growth rate since 1990.

    报道中的underscore就是“加下划线、强调”的意思，也可作名词，是“下划线”。例如：

    The findings only underscore that scientists don’t really know whether humans need some fixed amount of sleep.

    这一发现只是突出说明了一点 — 科学家并不真正知道人是否需要固定时间的睡眠。