草莓和奶油是完美的组合。

Strawberries and cream are a perfect ___combination.

疲倦和无聊加在一起让我睡着了。

A ___combination of tiredness and boredom made me fall asleep.

她的实践技能和创意想法是成功的组合。

Her practical skills and creative ideas are a winning ___combination.