Fast neutron
[电] 速中子
🧩 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
You must be very tired after the journey.
旅行之后，您一定累了吧！
Beg from beggers and you'll never be rich.
向乞丐乞讨，永远发不了财。
However, a few days later, he was told that a mistake had been made.
然而，几天之后，有人告诉他说弄错了。