1. The trees leaf ( out) in spring.
    树木春天生叶子。

2. Once you turn over a new leaf, you can't expect to change completely right away.
    一旦你改变了以往的做法，你也不能指望马上有效果。

3. Is there a maple leaf in Canada´s national flag?
    加拿大国旗上是不是有片槭树叶?

4. It is said that if anyone touches the tree, he will have bad luck; if he picks a leaf, he will die.
    据说，谁要是触摸了这棵树，谁就会交上恶运；如果谁摘了一片树叶，谁就会死去。