常见例句双语例句I decided to run the ballast pump and take on more water than needed, on the theory that it would take a bit to expel and the sub could sit on the bottom longer.我决定要运行镇流器泵，并采取更多的水，比所需要的，就理论，它将采取有点驱逐和小组可坐于底部更长的时间。 返回 ballast run