Vocabulary

flight path of a butterfly

optical system

accessible toilet; accessible restroom

butterfly net

needle removal; needle withdrawal

outermost (side)

bulb with reservoir; double balloon

frame-shaped; frame-like

working hours

being responsible for school lunch distribution and clean-up

cleaning equipment closet; broom closet

non-combustible waste; non-burnable rubbish

separator

strong point; selling point; forte; specialty; attraction

natural disasters happen when you've forgotten about the previous ones

push notification

vice versa; also the converse; reverse is true

shareholding ratio; percentage of stock owned (e.g. by a particular investor); equity share

(TV or radio) entertainer; television personality; radio personality

pilcrow; paragraph mark; paragraph sign

association; club; fan club; supporter's association

only cut (otherwise left as-is, e.g. hair)

first of all; in the first place; to begin with; for starters

to open some distance (e.g. with other people)

I; me

x variable; unknown variable; unknown factor

pleonasm; redundancy; tautology

semi-express train; semi-limited express

private railway

private railway

commuter express; commuter limited express; rapid-service commuter train

rapid express train

regional express

direct limited express

rapid express (train)

midnight express (train, bus)

S limited express (train)

housewarming gift; housewarming

hunger is the best sauce; nothing tastes bad when you're hungry

Lezginka (Caucasian folk dance); Lezghinka