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
That sounds really attractive.
听起来很有吸引力。
How much?How many?
共多少？
Please sign here to show that you have received the money.
请在这儿签字以表明你已收到这笔钱。"