Amethyst 紫水晶

Amethyst 紫水晶 /ˈæ.mɪ.θɪst/  the primary stress placed on the first syllable (AM)

defibrillator 心脏除颤器

defibrillator: devices that apply an electric charge or current to the heart to restore a normal heartbeat. If the heart rhythm stops due to cardiac arrest, also known as sudden cardiac arrest (SCA), a defibrillator may help it start beating again

fibrillate /ˈfɪbrɪleɪt/ v. (of a muscle, especially in the heart) make a quivering movement due to uncoordinated contraction of the individual fibrils.

"the atria ceased to fibrillate when the temperature was reduced"

fibril /ˈfaɪbrɪl/ n. plural noun: fibrils 原纤维 a small or slender fibre.

"each muscle fibre is subdivided into smaller fibrils"

give it my (our) best shot 尽力而为

Make one's hardest or most enthusiastic attempt, as in I don't know if I can do it, but I'll give it my best shot. This expression employs shot in the sense of “attempt”, a usage dating from the mid-1700s.

down in the dumps 垂头丧气

down in the dumps 

adj. very depressed and miserable. Synonyms: down, low, blue, sad

If you are down in the dumps, you are feeling very depressed and miserable. [informal] Example:

She's feeling a bit down in the dumps and needs cheering up. 

frumpy 女子衣着土气邋遢的

frumpy adj. dowdy and old-fashioned (typically used of a woman's clothes).

e.g. I look like a frumpy mess.

Am I really this frumpy?

uptick 上升

uptick

noun. a small increase or slight upward trend.

Examples:

"an uptick in foreign tourism"

"an uptick in participation rates over the last 15 years"

agnostic 不可知论

A type of religion. An agnostic is someone who doesn’t believe it’s possible to know for sure that a god exists. It’s possible to be both—an agnostic atheist doesn’t believe but also doesn’t think we can ever know whether a god exists. A gnostic atheist, on the other hand, believes with certainty that a god does not exist.