The first bite draws blood, and blood draws a pack of piranhas.

第一口咬出来的血散开了，会引来大量的食人鱼。

youdao

The doctors wanted blood tests first to find out what was she sick with.

医生首先要抽血化验，以了解她的病因。

youdao

At Lucas Nova Sensor in Fremont, California, scientists have perfected the world's first microscopic blood-pressure sensor.

在加利福尼亚州弗里蒙特的卢卡斯诺瓦传感器公司，科学家们已经完善了世界上第一个微型血压传感器。

youdao

It was the first bomb to explode in Tel-Aviv in six years, and the bus was charred with blood everywhere.

FORBES: My Family In Israel: One Direct Hit, Two Near Misses -- And The Brainwashing Behind The Rockets