en：throw [fling] a grenade.
en：throw a stone.
en：drop [cast] a ballot into the ballot box.
en：drown oneself in a river throw oneself into a river to commit suicide.
en：The tree projects a shadow on the grass.
en：cast an admiring eye on her.
en：send [post] one's card.
en：send a letter.
en：put up at an inn.
en：forsake darkness for light.
en：cater to sb's tastes.
en：find each other congenial be attracted to each other by common tastes.
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