ki'o tre lujvo

x₁ is x₂ kilometres long in direction x₃ by standard x₄.

Cf. gusminli, darno.

jbovlaste

In notes:

gusminli: x₁ is x₂ (default 1) light year(s) by standard x₃.
fei'u (exp!): Prefix division by following unit selbri