throwsthin
—phrasal verbwiththrowverbuk/θrəʊ/us/θroʊ/threw|thrown
If apersonorbusinesssellinggoodsthrowssomething in, theyprovideit forfreewhen youbuysomethingelsefrom them.
免费添加，额外奉送
When Iboughtmy newglasses, theythrewin afreepairofprescriptionsunglasses.我买新眼镜时，他们额外免费赠送了一副处方太阳镜。