everywhere; all over the place
pteridophyte (any plant of division Pteridophyta, incl. ferns and fern allies)
total eclipse of the Moon
allowable error; allowable limit of error
aviation cap; flying helmet
firing practice with live ammunition
cylinder; magazine of a revolver
transmittance; permeability
public security operation
diving goggles; swimming goggles; face mask; hydroscope
one never knows (what will happen); there's no telling (what the future holds)
(car) muffler; (piano) damper pedal; (gun) silencer
frosted (glass); matted; disillusionment; letdown
tucking up the sleeves of a kimono with a tasuki
underhand throw; submarine pitch
efficiently; skillfully; adeptly; adroitly; deftly
rearrangement (of classes); recomposition; recombination; reclassification
periodic inspection; regular inspection
exhaust gas; exhaust fumes
democratic nation; democratic country
to ease up; to relax attention
half out of interest; mostly out of curiosity
file cabinet; filing cabinet; shelf of documents
mail clerk; post-office clerk; post-office worker; postal employee; postal worker
to oil (e.g. a frying pan); to grease