冬中ずっと氷がその湖をおおう。

continuously in some state (for a long time, distance); throughout; all along; the whole time; all the way; much (better, etc.); by far; far and away; far away; long ago; direct; straight

ice; shaved ice (usually served with flavored simple syrup)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

that (something or someone distant from the speaker, close to the listener; actions of the listener, or ideas expressed or understood by the listener); the; um...; er...; uh...

lake

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to cover; to hide; to conceal; to wrap; to disguise