1.a number of 大量的;很多
We have lived here quite a number of years.
我們在這兒住了好些年了
。2.lead to 導(dǎo)致;引起
A lack of prudence may lead to financial problems.
不夠謹(jǐn)慎可能會(huì)導(dǎo)致財(cái)政上出現(xiàn)問題
。3.call on 呼吁;訪問
I call on everyone to renounce the use of violence and armed struggle.
我呼吁每個(gè)人都放棄使用暴力和武裝斗爭
。4.keep out of 使不進(jìn)入;把…擋在…外
People can keep out of the sun to avoid skin cancer.
人們可以通過避免陽光照射來預(yù)防皮膚癌
。