diff --git a/Makefile b/Makefile
index f49d634..c111257 100644
--- a/Makefile
+++ b/Makefile
@@ -33,7 +33,11 @@ $(CMLIB): $(CMDIR)
 
 #unit test
 Trie.ut: Trie.cpp Trie.h $(CMLIB)
-	g++ -o $@ $< -DTRIE_UT $(CMLIB) 
+	$(CC) -o $@ $< -DTRIE_UT $(CMLIB) 
+
+Segment.ut: Segment.cpp Trie.cpp Segment.h Trie.h $(CMLIB)
+	$(CC) -o $@ Segment.cpp Trie.cpp -DSEGMENT_UT $(CMLIB) 
+
 
 clean:
 	rm -f *.o *.ut $(CMLIB) main
diff --git a/Trie.cpp b/Trie.cpp
index 8db90f6..0fffa2e 100644
--- a/Trie.cpp
+++ b/Trie.cpp
@@ -91,6 +91,24 @@ namespace CppJieba
         return p->isLeaf;
     }
 
+	bool Trie::find(const vector<ChUnicode>& uniVec)
+	{
+		TrieNode * p = _root;
+		for(size_t i = 0; i < uniVec.size(); i++)
+		{
+			ChUnicode chUni = uniVec[i];
+			if(p->hmap.find(chUni) == p->hmap.end())
+			{
+				return false;
+			}
+			else
+			{
+				p = p-> hmap[chUni];
+			}
+		}
+		return p->isLeaf;
+	}
+
     bool Trie::cut(const ChUnicode* chUniStr, size_t len, vector< vector<size_t> >& res)
     {
         res.clear();
diff --git a/Trie.h b/Trie.h
index 005caf7..c6097da 100644
--- a/Trie.h
+++ b/Trie.h
@@ -96,6 +96,7 @@ namespace CppJieba
             bool destroy();
             void display();
             bool find(const ChUnicode* chUniStr, size_t len);
+			bool find(const vector<ChUnicode>& uniVec);
 
 		public:
             bool cut(const ChUnicode* chUniStr, size_t len, vector< vector<size_t> >& res);