Alkynyl
炔基
🗣️ 情景例句
What are you so upset about?
什么使你如此难过？
$10.00, please.
请付10美元。
and, in another instance, wearing stockings and slippers, to make out with her foot the outlines and colours of a picture hidden under a carpet.
还有一次，她穿着长筒袜子和拖鞋，能用脚步识别出藏在地毯下面的一幅画的轮廓和颜色。