1: 'About' or 'On'?
We use 'about' to talk about ordinary and general things.
'On' is more specific, serious and professional.
Example 1:
A Book About China's Eating Culture
vs
A Book on China's Eating Culture
兩者皆是關於中國飲食文化的書,但意思上不同。
前者為一本談及
普遍中國文化的書。例如書中可能會提及「很多中國人都食用米飯」。
後者則為一本
以(偏向)學術的角度探究中國文化的書。例如書中會為中國飲食文化作出深入分析,如把中國分為南北兩部細緻描寫各省的飲食文化。
Example 2:
They had a conversation about their son.
vs
They had a conversation on their son,
兩句皆是指他們有一段與他們的兒子有關的對話。
但
前者是不深入的,大概是夫婦二人
略略談到兒子的事情。
而
後者是一段
較認真的對話。這可以是因為兒子有些如學業、健康等問題令父母關注,故好好談論。
2: 'Altogether' or 'All together'?
好多人撈亂佢地
通常用'All together'都冇乜問題,但係'altogether'就亂亂地
Altogether先
(i)
'Altogether' is an adverb that means 'completely'
The legal reform is not altogether finished.
那法律改革還未完全完成
(ii)
'Altogether' means 'considering everything'.
即係「整體黎睇/講」或者「諗晒各方面/深思」
Altogether, she decided, marriage was a bit of a mistake.
全面思考過後,她作出了判斷。婚姻多少是個錯誤。
依句亦可以寫為
Altogether, she decided that marriage was a bit of a mistake.
(iii)
'Altogether' can also be used to give totals.
(何時要加's'在noun後?
'totals',即總額。在此要加上's'是因為這句是泛指所有的「總額」也可以用'altogether'修飾,而不是只有指定的'total'才可。
何時不用加's'?
例子有: 'That's £4 and £70, so the total is £74.')
That's £74 altogether.
總共£74。
到'All Together'
It usually means 'everybody/everything together'.
即所有人/物品一起
Come on, everybody. All together now...
來吧,每一位。全部現在一起(做某事情)......
They all went to the library together.
他們全部一起去了圖書館
source: Michael Swan, Practical English Usage