Nasw
[医][=National Association of Science Writers]全国科学作家协会
🗣️ 情景例句
Nothing much.
没什么要紧的事。
Do not sell the bear's skin before you have caught the bear.
熊未到手休卖皮（勿过早乐观）。
Before it could be transported to the United States, a site had to be found for it and a pedestal had to be built.
在雕像被运往美国之前，必须为它选好一块场地，同时必须建造一个基座。