Meanings

to steel oneself to

expansion pack (for a video game, collectable card game, etc.)

greedy algorithm

inflatable (in the sense of "needs to be inflated for normal use")

self-inflating

school visit

feeling of tension

Yūbari melon (sweet orange melon grown in Yūbari City, Hokkaido)

lining

augmented reality

to have stiff shoulders

pulling

displaying prostitutes behind a grille

to speculate

interfacial tension

spreading a piece of wet washing or paper on a board

catatonia

discouraging

plank used to dry wet clothes or paper

to take a firm stand