better to ask and be embarrassed than not ask and never know
weld; weld zone; welded part
cryptography; encryption technology
filler; extender; bulking agent
encryption key; cryptographic key
prosopagnosia; face blindness
going up and down; ascent and descent; climb and descent
origin; fundamental element
to disrupt; to ruin; to hinder; to thwart
nuclear fission; fission reaction
airfoil profile; aerofoil profile; wing section
communication path; communication channel
bad things happen to those who attempt things; (lit.) if a dog walks they will hit a stick; good luck may come unexpectedly
monkey (esp. the Japanese macaque, Macaca fuscata); ape; non-human primate
to be caught by the enemy
dim-witted; airheaded; bird-brained; dim; dullard; blockheaded
person of virtue; great person; giant; adult; exalted person
affected (appearance, attitude); stuck up; pompous; self-loving
to pull one's hair back into a bun
notebook-format (computer)
characteristic vibration; normal mode
encumbrance; burden; drag
recoilless rifle; recoilless gun