sail

中文： 帆、风帆

1. A piece of fabric attached to a boat and arranged such that it causes the wind to drive the boat along. The sail may be attached to the boat via a combination of mast, spars and ropes. (countable, uncountable)
2. The concept of a sail or sails, as if a substance. (uncountable) · Take in sail: a storm is coming.
3. The power harnessed by a sail or sails, or the use of this power for travel or transport. (uncountable)
4. A trip in a boat, especially a sailboat. (countable, uncountable) · Let's go for a sail.
5. A sailing vessel; a vessel of any kind; a craft. (countable, dated, uncountable) · Twenty sail were in sight.
6. The conning tower of a submarine. (countable, uncountable)
7. The blade of a windmill. (countable, uncountable)
8. A tower-like structure found on the dorsal (topside) surface of submarines. (countable, uncountable)

复数 sails