重點講解：
1. that's all
沒別的了；就是這么回事；
eg. It wasn't anything serious. A mild stomach upset, that's all.
沒什么大不了的。只是胃有點不舒服，沒別的。
eg. You just don't want to go; that's all.
你就是不想去罷了。
2. get back to
返回；回到；
eg. I think I ought to get back to work.
我想我該回去工作了。
eg. After a number of mishaps she did manage to get back to Germany.
經歷了一番波折之后，她終于設法返回德國。
3. a groove of
一片；
eg. A grove of trees shadowed the house densely.
樹叢把這幢房子遮蔽得很密實。
eg. Up ahead,she saw a grove of straight,tall,beautiful trees,and she went in that direction.
她看見前邊有一片樹林，樹木高大、美麗，便朝著樹林走去。