no go
US /ˌnoʊ ˈɡoʊ/
UK /ˌnoʊ ˈɡoʊ/

1.
行不通, 禁止
something that is not allowed or possible
:
•
Trying to get a refund without a receipt is a no go.
没有收据就想退款是行不通的。
•
That plan is a definite no go; it's too risky.
那个计划绝对行不通;风险太大了。
1.
不允许的, 行不通的
not allowed or possible
:
•
For safety reasons, climbing that fence is a no go.
出于安全原因,攀爬那个栅栏是不允许的。
•
The doctor said strenuous exercise is a no go for now.
医生说剧烈运动目前是不允许的。