Very constrainedly, she agreed a young doctor to operate on her.
她非常勉强地同意让一位年轻医生为她作手术。
People pass, black and white, the Negroes frankly participants in the spirit of Spring, the whites laughing constrainedly, awkward in natural emotion.
穿梭而过的行人中有黑人也有白人，黑人自在地享受着美好的春光，白人们则强作欢笑，表情显得不自然。
This paper introduces several typical structures of HCB and expatiate on the principle of naturally current commutating and constrainedly current commutating.
