They never met without smiling at each other.

她们每一次相遇都彼此微笑。

youdao

It is surprising that an augur can see an augury without smiling.

出乎意外，占卜家能知预兆而不笑。

youdao

It's impossible to say hello without smiling. One leads to the other just as a tap causes a knee jerk.

说“你好”的时候，是不可能不面带微笑的，而且能一个传给另一个，正如敲击膝盖引起的条件反射。

youdao

You can't get off this bike without smiling - it's just not possible.

ENGADGET: Specialized Turbo e-bike reaches the US, offers a speed boost for $5,900

Even without this study, common sense tells us that smiling at others invites them in.

FORBES: New Data on Smiling

Once again, he sees them smiling and then he sees them walking away down a street where yellow lights scatter and regroup sporadically, without any obvious pattern, although Henric knows deep down that everything is determined in some way, everything is causally linked to something else, and human nature leaves very little room for the truly gratuitous.

NEWYORKER: Labyrinth