Buffer lerther
[機] 磨面絨革
?? 詞語組成解析
buffer
['b?f?]
n. 緩沖器;起緩沖作用的人（或物）;[化]緩沖液，緩沖劑;[計]緩沖區;
vt. 緩沖;[化]把緩沖液加入（溶液）;
??? 情景例句
We can have somebody come by, but it won't be right away.
我們可以派人去，但現在不行。
None knows the weight of another's burden.
看人挑擔不吃力。
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體得到休息，那么也許是讓大腦得以休息？若不是下面兩點，這種假使似乎是有道理的。