Cocain
n. 古柯碱；可卡因（等于cocaine）
🗣️ 情景例句
Mr. Douglas is currently on leave.
道格拉斯先生眼下正在休假。
He is in difficulty in his business.
他在事业上遇到困难了。
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.
情况很快就弄清了，舞蹈的直线部分是随着太阳位置的变化而变化的。