If you are like me and have trouble feeling fully awake first thing out of bed in the morning, try doing a little light cross-training before you run.
如果你像我一样，在早上起床后难以彻底醒过来，你可以在跑步前做一些少量的交叉训练。
2
They sat on the bedcross-legged and looked at each other.
他们盘腿坐在床上看着对方。
3
And base on the experiment, calculating formula of cross section mean velocity's reduction after planting and bed shears stress of vegetation dam block are established.