1.get a leg up 占據優勢

Critics say such munificence is just a way for Chinese firms to get a leg up over competitors in the scramble to lock up Africa's resources.

有批評人士稱，中國的慷慨只是為了讓中國公司在獲取非洲資源方面得到競爭優勢qCb5k@~|Jxnss_weD。

2.a string of 一系列

A string of scandals is obsessing America.

一系列丑聞在困擾著美國|!!v-ZXJrl6N_v65A。

3.puzzle over 苦苦思考

In rehearsing Shakespeare, I puzzle over the complexities of his verse and prose.

排演莎士比亞戲劇時，我苦苦地思索著他詩歌和散文中的復雜難懂之處&hnvPKY,Dac;@。

4.comply with 遵守

Some beaches had failed to comply with environmental regulations.

一些海灘沒能遵守環保規定ZJETpiiQDok。