Once at sea, there were no physical points  of reference for position or traveling speed.

一旦在海上，就没有位置或行进速度的物理参考点。

Developing that character was a very funny kind of moment because so much of it was created from a physical point.

开发这个角色是一个非常有趣的时刻，因为它有很多是从物理角度创造的。

BEST FOR RETIREMENT. Strictly from a physical and economic point of view, the best bet for retirement living is a place with lots of sunshine and a low cost of living.

退休养老首选地。如果严格地从自然和经济的观点出发，退休养老的最佳居住选择是阳光充足和生活费用低廉的地方。