情人节卡片上装饰着一个红色的心形。

The Valentine's card was decorated with a red ___heart.

他的T恤上印着一个大的心形，上面写着‘我爱你’。

His t-shirt featured a large ___heart with the words 'I love you'.

孩子们经常画一个心形来象征爱。

Children often draw a ___heart to symbolize love.