be made of，be made in，be made from，be made by，be made up of这些都是make+介词的固定搭配。
be made of表示“由…制成”，指从原料到制成品，只发生了形状变化，没有发生本质变化属物理变化。
be made in当后面接指时间的数词或名词时，表示“某物何时制造的或何时产的”。当后面接指地点的名词时，表示“某地产某物”。
be made from表示“由…制成”，指从原料到制成品，发生了质的变化，已无法复原属化学变化。
be made by表示“由…制做”，后面接指人的名词或代词，强调动作的执行者。
be made up of表示“由…构成组成”，强调主语由两部分或两个以上的部分构成或组成。
近义词 be made of由 … 组成be made up of由 … 构成be made in在 … 生产或制造…
The trunk seems tobe made fromcamphorwood.这个箱子象樟木做的。
Water canbe made fromoxygen and hydrogen.水是由氧和氢组成。
My father said cement couldn'tbe made fromchalk.我父亲说水泥不能用白垩来制作。 The fuel will be made from two heavy forms of hydrogen, called deuterium and tritium.
燃料由氢的两种较重的同位素制造，分别称为氘和氚。 ecocn
“ Required interfaces” characterize the requests that may be made from the classifier to its environment through the port.
“需要的接口”描述了标识符对其环境通过端口发出的请求。 ibm
But if the price were to come down because efficient cells could be made from cheap materials, that could change quickly.
但是如果低成本高效率的电池引起价格下降，这些状况会很快改变。 ecocn