Magnesium hdroxide
[醫] 氫氧化鎂
?? 詞語組成解析
magnesium
[m?g'ni:zj?m]
n. [化]鎂（金屬元素）;
??? 情景例句
and he's pretty sure that I can get a good job there.
他相當肯定我可以在那兒弄到一份好工作。
Until when?
借到什么時候？
What will be the population of these countries by the end of the twentieth century?
到20世界末較發達國家的人口將是多少？