沿着15号州际公路一直向北，一过巴斯托就从出口驶出。Go north on I-15 to the exit just past Barstow.一驶出内防波堤，我们就扬起了所有的船帆。Once outside the inner breakwater, we began to unfurl all the sails.他驶出车流，以超过一辆卡车。He pulled out to overtake a truck....
缺镁会导致肌肉痉挛。A lack of magnesium causes muscles to go into spasm.镁是植物生长的营养要素.Magnesium is the nutrient element in plant growth.这水含有大量的镁.The water contains high amounts of magnesium....