Ssfs
[医]Single Slice Flow Study
🗣️ 情景例句
And, Carl, you join in at any time.
还有Carl， 你随时都可以加入。
Are you in touch with him now?
你现在和他有联系吗？
But the historian attempting to reconstruct the distant past is always faced with a difficult task.
但是，历史学家企图重现遥远的过去可是一项艰巨的任务，