我的智能手表需要与手机同步才能显示最新消息。

My smartwatch needs ___syncing with the phone to show the latest messages.

我需要把视频和字幕同步一下。

I need to spend some time ___syncing the subtitles with the video.

我们需要同步各自的工作进度以确保项目顺利进行。

We need to ___sync our work progress to ensure the project runs smoothly.