Fast neutron reaction
[电] 速中子反应
🧩 词语组成解析
fast
[fæst]
adj. 快的;走得快;感光快的;紧的;
adv. （比准确的时间或宣布的时间）快;迅速地;紧紧地;彻底地;
vi. 禁食，（尤指）斋戒;
n. 禁食期，斋戒期;断食，节食;
🗣️ 情景例句
I would be interested in a ten-day trip around Christmas time.
我有兴趣在圣诞节前后去玩10天。
How much is it by registered mail?
挂号信要多少钱？
I don't want to hear it.
我不想听！