Idioms
1. only if
~という条件においてのみ
Test
1 / 5
It is absolutely impossible.
2 / 5
He must be 50 and above.
3 / 5
She is about sixty.
4 / 5
The sun is just about to sink.
5 / 5
a frame with rows of sliding beads, used for doing arithmetic
Your score is