I dont know who bought the present for me.

我不晓得谁给我买了礼物。

youdao

I dont need the dictionary at present.

我现在还不需要这本词典。

youdao

At present, there are many algorithms for twig pattern matching, but they dont have good method to solve the twigs which have parent-child edges.

目前，已经提出了很多小枝模式匹配算法，但没有解决含有父子边的小枝模式查询。

youdao