be but

• 仅仅是

be but的用法和样例：

例句

1. Our world is but a small part of the cosmos.
   我们的世界仅仅是宇宙的一小部分而已。
2. Admiral Mullen's soothing words were but a start.
   米伦的安慰行为仅仅是一个开始。