の下で/の下に => under; with ~ N2
以下 => As follows, below N3
Standard
のが下手 => to be bad at doing something N5
て[下「くだ」]さる => Do for someone N4
Give and take advice
[以下「いか」] => Less than A, under/below A (amount) N1
Degree/ Level/Amount
て下さいませんか => Please do A (polite) N5
Asking and Telling
可能形 => Potential form N4
[下「くだ」]さる => Give B to A (A is you, your friends, your family, etc.) N4
Give and take advice
一体 => …the heck; …in the world; …on earth N3
を契機に => as a good opportunity/chance to N2
Expected
を[機「き」]に => Use A as an opportunity N1
Time, Situation
[可能系「かのうけい」] => Can, be able to, be possible to N4
Can, Should, Must