形容詞 arguable:

1. capable of being supported by argument
2. open to argument or debate
   同義詞：debatable, disputable, moot

1. It is arguable that the poverty of Portugal caused the discovery of India.
   可以說(shuō)印度是因?yàn)槠咸蜒镭毟F才被發(fā)現(xiàn)的。
2. It is arguable that we would be just as efficient with fewer staff.
   我們的職員少一些也能發(fā)揮同樣效率，這是言之成理的。
3. This account contains many arguable statements.
   這種說(shuō)法含有很多疑點(diǎn)。

ar.gu.a.ble

adj.（形容詞）
Open to argument:
爭(zhēng)辯的：可爭(zhēng)論的：
例句：
an arguable question, still unresolved.
一個(gè)尚未決定仍可爭(zhēng)辯的問(wèn)題

That can be argued plausibly; defensible in argument:
看起來(lái)似乎真實(shí)的論證的；可辯護(hù)的爭(zhēng)論：
例句：
three arguable points of law.
三條法律上可以論證的要點(diǎn)

【引伸】
ar.guably
adv.（副詞）