Researchers observed that two dimensional bilayer ice I exhibits unusual shrinkage as it freezes, challenging conventional models of water ice.

In boron chemistry, three-center two-electron bonds stabilize electron-deficient clusters and influence reactivity.

After months of effort, the project's apparent gains became one step forward, two steps back for the team when the new regulations wiped out their progress.

It's easy to trip over one's own two feet when one is exhausted.

Watching two bald men fighting over a comb felt like a perfect metaphor for petty disputes over worthless things.

As a proverb warns, one hand can't hold two watermelons, so prioritize what you can realistically manage.

When you're overloaded at work, remember that one can't hold two watermelons in one hand, so prioritize the most important projects.

As my grandfather used to say, one can't carry two watermelons under one arm, so choose your commitments carefully.