Ron choked on his bit of toast, and Hermione gasped.

He choked over his food.

他吃东西噎住了.

He choked while he was eating.

他吃东西时噎住了.

He started to choke as he was eating too fast.

他吃得太快,噎住了.

Primary Immune Response of Tri-valent Oral Polio Vaccine ( TOPV) in Different Areas

三价脊髓灰质炎活疫苗在不同地区人群的基础免疫应答

Study on intensive immunity effect of TOPV

TOPV强化免疫效果的研究

The lift went downward from the sixth to the first floor.

电梯从七楼向下降到二楼.

Acting as Meta culture, the Goods-Building ( GB) culture nourishes the Art Symbol like nutritious soil, which initiates the art creation wealthily.

作为本元文化的造物文化，是滋养艺术符号的富饶土壤，为艺术创造提供丰厚的源头活水。

Good transport facilities, wealthily district resources, and superior field bit condition made us have "timeliness, advance ground, gracious human relation".

便利的交通、丰富的地域资源和优越的区位条件使我们占尽“天时、地利、人和”。

By now, wealthily was riding a steamship process.

这时，富裕乘着一艘大船经过。

Soft, sensation, moistness, na ï vet é and surprising composed the shell, which is his cumbrance but also protect his elegance, heaviness, and boringness.

柔软、敏感、湿润、天真、惊奇造就了那装着他拖累着他当然也保护着他的精美、坚固、沉重、了无生气。

The reform of state-owned commercial bank has lagged behind and then posed cumbrance to the reform of economic system and the normal development of economy.

国有商业银行改革的滞后性对经济体制改革和经济正常发展形成拖累。

Whether service industry is a drive or cumbrance for economic development is still a debate issue.

摘要服务业到底是经济增长的动力还是拖累，这仍然是一个有争议的问题。

I find him extremely self-opinionated and irritating.

我发现他是个极其固执气人的家伙。

She's very self-opinionated and refuses to listen to anyone else's point of view.

她非常固执己见，拒绝听仟何人的观点。

Four families ( Xenopeltidae, Colubridae, Elapidae, Viperidae) and 30 species in Serpentes.

蛇亚目4科（闪鳞蛇科、游蛇科、眼镜蛇科、蝰科）30种。

A New Subfamily Record ( Acrochordinae) of the Chinese Serpentes& Acrochordus granulatus ( Gray) Clumping analysis of geographic area of serpent in China

中国蛇类一个亚科的新纪录&黑斑瘰鳞蛇我国蛇类爬行动物地理分区的聚类分析

In this case, our tree would start out much flatter, even without the massaging in. nonterminal().

既然这样，我们的树就更容易启动列，甚至不用在.nonterminal（）中传送消息。

The structure of forecasting model decision tree and solving approach of decision function at each nonterminal node is given.

文中给出了FMDT的结构及FMDT的每一个非叶结点的决策函数的基于遗传算法求解方法。

The syntax analyzer has one recursive procedure for each nonterminal U.

对于每个非终结符号U，语法分析程序都有一个递归过程。

University enrollments had risen by 50 per cent.

大学入学人数增加了50%.