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Meanings
hydrogen (H)
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Example sentences
Hydrogen is the lightest element in the universe.
When hydrogen and oxygen combine, they form water.
This fuel cell generates electricity using hydrogen.
Hydrogen energy is attracting attention as a next-generation clean energy source.
Hydrogen is a colorless, odorless gas at room temperature and has the property of being highly flammable.
Related words
to dive (into or under water); to get under, to get into, to get in, to creep into, to crawl under, to bury oneself, to burrow into, to dig oneself into, to snuggle under; to hide oneself (esp. from the government), to conceal oneself, to go underground
top and bottom, high and low, above and below, upper and lower ends, up and down; going up and down, rising and falling, fluctuating; going and coming back; upper and lower classes, ruler and ruled, the government and the people; first and second volumes; top and bottom, two-piece (outfit)
to prick, to stab; to poke, to prod, to push, to thrust, to nudge, to hit, to strike; to use (a cane), to prop oneself up with, to press against (the floor, etc.); to attack; to brave (the rain, etc.)
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More N2 words
to dive (into or under water); to get under, to get into, to get in, to creep into, to crawl under, to bury oneself, to burrow into, to dig oneself into, to snuggle under; to hide oneself (esp. from the government), to conceal oneself, to go underground
View detailstop and bottom, high and low, above and below, upper and lower ends, up and down; going up and down, rising and falling, fluctuating; going and coming back; upper and lower classes, ruler and ruled, the government and the people; first and second volumes; top and bottom, two-piece (outfit)
View detailsto prick, to stab; to poke, to prod, to push, to thrust, to nudge, to hit, to strike; to use (a cane), to prop oneself up with, to press against (the floor, etc.); to attack; to brave (the rain, etc.)
View detailsto peel, to skin, to pare, to hull, to strip; to bare (teeth, fangs), to open wide (eyes)
View detailsto step aside, to move (out of the way), to make way; to resign, to retire, to quit, to secede
View detailstime, years, days, (one's) life; the Moon and the Sun
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