等于although
conj. 尽管，虽然但是，然而Although it is tasty， crab is very filling.
螃蟹虽然好吃，但很容易让人饱。
Although small， the kitchen is well designed.
厨房虽小，但设计巧妙。
Although the sun was shining it wasn't very warm.
尽管太阳高照，却不很暖和。
Although he's nearly 80， he is still very active.
尽管快80岁了，他还是十分活跃。
Although he was experienced， he was not infallible.
尽管他经验丰富，却并非不会出错。
