On Wall Street, stocks closed at their second highest level today.
华尔街股市今天在第二高位上收盘。
《柯林斯英汉双解大词典》
2
Ventilation can help reduce the level of pollutants in closed rooms, the researchers said.
通风换气可以降低密闭空间内的污染物水平，研究者们如是说。
3
The surrounding basin is that of Red River, but because Devils lake's own basin is closed, the lake must reach a sufficient water level before the water travels elsewhere.