n.拼写,拼法
v.拼写( spell的现在分词),意味着
He gave his name and then helpfully spelt it.
他说出自己的名字,然后又热心地将它拼了出来。
His speech spelt out his party's policy on foreign affairs.
他的演说阐明了他的政党的对外政策.
"Tang" is "Gnat" spelt backwards.
Gnat倒着写出来就是Tang。