不参与bú cān yǔ
drop out, drop out of, nonparticipation
跌水diē shuǐ
head fall; water fall; drop; hydraulic drop
球面三角形qiú miàn sān jiǎo xíng
spherical triangle
球状的qiú zhuàng de
globular; bulbiform; conglobate; spherical
艏落shǒu luò
dropping
原声例句
PBS趣味科普
All of these combined, flatten out the spherical drop into a sort of hamburger-kind of shape.
所有这些结合在一起,使球形水滴变平,形成一种汉堡包的形状。
NASA微课堂
As the drop continues to fall and grow, at some point, it becomes too large for the surface tension to hold it together, so the raindrop breaks apart into smaller spherical drops.