B. b. b.
[医] 血脑障壁
🗣️ 情景例句
Second, we have to make an effort to encourage American companies to do business in our country.
第二，我们必须鼓励美国公司在我国开展业务。
Do you often do composition after school?
你常常在放学后做作文吗？
That is all he can have now.
这是他现在所能得到的一切。