Tensioactive
表面活性的
??? 情景例句
Sir, everything now is offered with a great discount.
先生，所有的東西都在打很大的折扣。
It is the bridle and spur that makes a good horse.
要把馬練好，韁繩靴刺少不了。
These alone took sixteen months to build.
僅這兩座塔就花了16個(gè)月才建成。