🧩 词语组成解析
n. （受过偷窃技术专门训练被雇作间谍或刺客的）日本武士
sex
[sɛks]
n. 性别;两性之一;性，性特征;性活动;
vt. 辨识性别;引起性欲;吸引;
🗣️ 情景例句
How long?
多久？
Don't you think she's cute?
你不认为她很可爱吗？
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。