Hg a
[醫] 汞(80號元素), 水銀
?? 詞語組成解析
abbr. 標準德語（High German）；手搖發電機（Hand Generator）
??? 情景例句
Are you the oldest in your family?
你是你家里最大的孩子嗎？
Keep that in mind.
記住那件事。
We are all very excited and are looking forward to the Olympic Games because they have never been held before in this country.
我們都非常激動，盼望著奧運會的到來，因為在這個國家里還從未舉辦過奧運會。