four-wall contraction 四壁收敛段
four-wall tangentially fired 四墙切圆
four wall tangentially-fired 四墙切圆
great wall four star 沙城长城干红四星
four-wall tangentially pulverized-coal furnace 四墙切圆煤粉炉
four sides constrained wall 四边约束墙体
More than four thousand homes were destroyed when a nearby flood wall broke.
VOA: special.2010.01.22
I started talking about what happened in October 1987 and I looked around the room and I realized that I think the students were three or four years old in 1987 and weren't yet reading The Wall Street Journal.
当我提到1987年10月所发生的事,我环顾整个教室,意识到,1987年在座各位可能只有三四岁,还没有读过那时的《华尔街日报》
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