Being responsible for one's own health is one thing, but being responsible for another person's health is quite a different matter.

对自己的健康负责是一码事，但对别人的健康负责完全是另一码事。

《柯林斯英汉双解大词典》

During a chemical change, one kind of matter changes into another completely different kind of matter.

在化学变化中，一种物质变成另一种完全不同的物质。

youdao

Love is a matter of timing, meet too early or too late is no good, if I meet her at another time or space, the outcome might be different.

爱情是有时间性的，认识得太早或太晚都是不行的，如果我在另一时间或空间认识她，这个结局也许会不一样。

youdao

The judges agreed a competent adult had the right to refuse medical treatment even if it led to death, but the taking of active steps by a third party to bring about the death of another was entirely a different matter, the court ruled.

BBC: Europe

Although the High Court judges agreed a competent adult had the right to refuse medical treatment even if it led to death, they ruled the taking of active steps by a third party to bring about the death of another was entirely a different matter.

BBC: Marie Fleming and Tom Curran

With another camcorder, that wouldn't matter, because you could always use a different editing program, like Apple's excellent offerings.

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