Essential optional user facility
[计] 基本的任选用户设施
🧩 词语组成解析
user
['ju:zə]
n. 用户，使用者;吸毒成瘾者;
🗣️ 情景例句
Yes, this is my youngest son Robbie.
是的 这是我的小儿子Robbie。
True friendship is a plant of slow growth.
真正的友谊像是生长缓慢的植物。
If it is not a question of resting the body, then perhaps it is the brain that needs resting? This might be a plausible hypothesis were it not for two factors.
如果睡眠的功能不是在于使身体得到休息，那么也许是让大脑得以休息？若不是下面两点，这种假使似乎是有道理的。