N-SING
許可；批準(zhǔn)
If you give someone or something the go-ahead, you give them permission to start doing something.
例句
The Greek government today gave the go-ahead for five major road schemes...
希臘政府今天批準(zhǔn)了5項(xiàng)重大的道路修建方案。
Don't do any major repair work until you get the go-ahead from your insurers.
除非經(jīng)保險(xiǎn)公司同意，否則不要進(jìn)行任何大修。