rectilinear
adj
1 in or forming a straight line 直线的; 形成直线的
rectilinear motion 直线运动.
2 bounded by or having straight lines 用直线围著的; 有直线的
a rectilinear figure 直线图形.
🗣️ 情景例句
Rome wasn't built in a day.
冰冻三尺,非一日之寒。
I often go to school in the morning.
我常常在早上去学校。
Speculations about is nature have been going on for literally thousands of years,