The way forward is not always clear and through, but we finally find the correct direction. Maybe some review of the trace behind could tell the reason.
未来的道路，并非一览无遗，但我们终于看清了前进的方向，也许偶尔审视来时的轨迹，可以找到一点端倪。
The reason is that it makes the call explicit and the intent clear.
原因是它使调用显式意图明显。
The reason is that it makes the call explicit and the intent clear.
原因是它使调用显式意图明显。
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