Elastooptics
弹性光学
🗣️ 情景例句
I can't build a fire by rubbing two pieces of wood together.
我总不能靠着磨擦两片木柴来取火吧。
I've been here for three weeks, and so far I've enjoyed it.
我已经在这里逗留了三个星期，到现在为止，我过得很好。
Late in the afternoon, the boys put up their tent in the middle of a field.
傍晚时分，孩子们在田野中央搭起了帐篷。