释义：
begin to 开始做某事
就像 start 可以接 to+动词或 ... ing, begin 也可以用 begin to+动词或 begin+ ... ing 的结构。
例句：
I began to like Korean food, such as bulgogi and kimchi.
我开始喜欢上韩国料理了，比如说烤肉和泡菜。
Tom pulled her toward him and they began to kiss.
汤姆一把把她拉了过去，两人开始接吻。
I'd like to begin repairing it.
我要开始修理它了。
对话：
A: Does your son have any hobbies?
你儿子有什么爱好吗？
B: He's begun to collect stamps.
他开始喜欢上集邮了。
