詞彙精選：weak的用法和辨析
一、詳細釋義：
adj.
[經]疲軟的
例句：
If the wireless business turns weak, a whole country is at risk, not just a single company.
如果這家無線通訊公司變得疲弱，那麼整個國家就會面臨風險，而不僅僅是這一家公司。
例句：
When the economy is weak, it's very hard for suppliers to raise their prices.
經濟疲軟時供貨商很難提價。
虛弱的，無力的
例句：
Mother was so weak after her operation that she had to lie up for a month.
手術後母親非常虛弱，以致要臥牀一個月。
例句：
His arms and legs were weak.
他的四肢虛弱無力。
軟弱的；不中用的，愚鈍的
例句：
They are weak-minded, and the established impresses itself upon them easily.
他們腦筋遲鈍，正統思想很容易在他們腦瓜上打上烙印。
例句：
He is rather weak-willed and would easily fall through temptation.
他意志薄弱，很容易受誘惑而墮落。
不牢固的
例句：
Flours with strong gluten absorb more water than do flours with weak gluten.
含有強有力的麪筋的麪粉較含有不太牢固的麪筋麪粉要吸收更多的水分。
例句：
The structure will prove weak in service.
該構件在使用中將被證明是不牢固的。
淡薄的
例句：
The plateau's air is very weak, it is difficult to survive.
高原空氣稀薄，難以生存。
例句：
I just need a cup of weak tea.
我只需要一杯淡茶。
二、詞義辨析：
weak,feeble,frail,fragile
這些形容詞均有“虛弱的，乏力的”之意。weak普通用詞，指缺乏應有的力量，可用於身體、意志或精神。feeble指身體衰弱無力，精力幾乎耗盡，含令人憐憫的意味。 frail多指因經常生病而身體纖弱。fragile可與frail換用，但語氣強，側重脆弱，指人容易生病，指物容易破碎。
三、相關短語：
weak force
[物] 弱相互作用(基本粒子之間的一種基本相互作用)
weak interaction
[物] 弱相互作用(基本粒子之間的一種基本相互作用)
weak point
弱點
weak spot
弱光點，疵點，薄弱點
四、參考例句：
He has weak eyes.
她的視力不佳。
Geography was my weak subject.
地理是我的弱項。
He has a weak liver.
他的肝臟不好。
She is weak in grammar.
她語法很差。
His defence was rather weak .
他的辯護是相當無力的。
Rosa is weak in Maths.
羅莎數學比較弱。
His arms and legs were weak.
他的四肢虛弱無力。
The aviation was lamentably weak and primitive.
這些航空設施極其薄弱簡陋。
Your love is also your weak point.
你的愛同時也是你的弱點。
The strong usually dominate the weak .
強者通常統治弱者。
