It is not unlikely, but that there may be yet invented several other helps for the eye, as much exceeding those already found, as those do the bare eye.

石油化工的未来在于高附加值、低碳产品。

最深刻的发现往往来自最简单的观察。

Show me your calendar and I will tell you your priorities. Tell me who your friends are， and I’ll tell you where you’re going.