That too, infants with complicated heart problems.
那，婴儿以复杂的心脏问题。
Seeing this, I felt complicated in heart.
看到这一幕，我的心情无比的复杂。
A heart attack isn't very complicated.
心脏病其实并不复杂。
Background Heart failure (HF) is a complicated clinical syndrome.
心力衰竭(HF)是一种复杂的临床综合症。
Background Heart failure (HF) is a complicated clinical syndrome.
心力衰竭(HF)是一种复杂的临床综合症。
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