Most heart attacks are caused by coronary-artery disease, which occurs when a blood clot blocks blood and oxygen flow in a blood vessel leading to the heart.

大多数的心脏病发生原因都是由于血栓堵塞了心脏供血和氧的血管而引发的冠脉疾病。

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Under the circumstance of e-commence, the international vessel market is a heatedly competitive capital goods market in which the customers play leading roles.

国际船舶市场是电子商务条件下的客户占主导地位、竞争激烈的生产资料市场。

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Access to Canada on a regular basis seagoing vessel, aircraft routes leading to France and Canada.

有定期海轮通往加拿大，飞机航线通往法国和加拿大。

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They paint Mr Cameron as an unreconstructed Thatcherite, a changed man leading an unchanged party and an empty vessel all at the same time.

ECONOMIST: Gordon Brown's next six months

Elsewhere, Royal Navy Leading Aircrewman Kevin Regan was awarded a Queen's Gallantry Medal for his part in rescuing the crew of a vessel floundering in "mountainous seas".

BBC: UK soldiers honoured for bravery