VOA慢速英语:突破血脑屏障治疗脑疾病

skull – n. the structure of bones that form the head and face of a person or animal

glucose – n. a type of sugar that is found in plants and fruits

high frequency – n. a radio frequency between very high frequency and medium frequency

ultrasound medical noun : a method of producing images of the inside of the body by using a machine that produces sound waves which are too high to be heard

inject – v. to force a liquid medicine or drug into someone or something by using a special needle — often + into

bubble – n. a tiny, round ball of air or gas inside a liquid

vibrate – v. to move back and forth or from side to side with very short, quick movements

a lot riding on (something) – phrase to be depending on the successful outcome or development of something

beam – n. a line of energy, particles, etc., that cannot be seen

steer – v. to control the direction in which something (such as a ship, car, or airplane) moves