I left very early last night, but I wish I hadn't left so early.
我昨晚離開得非常早,但我希望我沒有離開那么早。[大學英語六級]
It soon became clear that the straight part of the dance changed when the sun's position changed. If the feeding place was toward the sun, the dancer headed straight upward during the straight part of the wagging dance.
情況很快就弄清了,舞蹈的直線部分是隨著太陽位置的變化而變化的。