English Coach

contraction (noun) 短縮、収縮、陣痛

The process of becoming smaller, the process in which a muscle becomes or is made shorter and tighter.

contract (noun) 契約、契約書、(verb) を（〜と）契約する（with）(〜を)引き締める、（顔、まゆなど）をしかめる、〜を縮ませる、短縮する

(noun) a written or spoken agreement, especially one concerning employment, sales or tenancy, that is intended to be enforceable by law.

decrease in size, number, or range, become shorter and tighter in order to effect movement of part of the body, shorten (a word or phase) by combination or elision


This creature contract when we sprinkle salt over it.

rampant (adjective) はびこっている、猛威を振るう

(adjective) (especially of something unwelcome) flourishing or spreading unchecked,
unrestrained in action or performance,
lush in growth; luxuriant

The habit to drink alcholic drink is rampant.

instability (noun) 不安定（な状態）、変わりやすさ、移り気

the state of being unstable; lack of stability

We need to resolve the instability of mind.

disrupt (verb) を分裂させる、紛糾する、崩壊させる、を混乱させる

interrupt (an event, activity, or process) by causing a disturbance or problem.

Unfair valuation to employees disrupts the organization.

elucidate ~を解明する、はっきりさせる、

make (something) clear, explain

I would like to elucidate the mechanism of this phenomenan.

undo ~をほどく、〜を元通りにする、〜を取り消す、〜を破滅させる

unfasten, untie, or loosen, cancel or reverse the effects or results of , cancel


His deed is undoing of our achievement.

shabby (adjective) ボロボロ、みつほらしい、粗末、よれよれ

in poor condition through long use or lack of care.


My bag is shabby, because I have used this bag for over 15 years. However, I like this bag.

downturn 下落、沈滞

a decline in economic, business, or other activity.

Japan has been in economic downturn for over 20 years.

streak （noun）短期間、ひと続き

a period o ftime when a person experiences success or failure continuously.


I experienced a streak of hardship.

dangle (自動詞) だらりとたれる、ぶらぶら揺れる、(他動詞)をぶら下げる、ちらつかせる

hang or swing loosely

offer (an enticing incentive) to someone

They dangle the good working incentive in front of him, then treat him in cold way.