Helicobacter
螺杆菌
🗣️ 情景例句
Nobody. That's the problem.
没有人。这就是问题所在。
I'll have studied English for four years next March.
到明年三月，我就学了四年的英语了。[将来完成时，表示将完成…，会做完…]
If he wants to make any changes,minor alternations can be made then.
如果他有什么意见的话，我们还可以对计划稍加修改。