Definition: similar and happening at the same time Level: C2
在两个国家同时进行类似的实验。
___Parallel experiments are being conducted in both countries.
这本日记是一个通向他所称的平行世界的维度门户。
The diary was a dimensional portal to a ___parallel world he called Wonderland.
多年来，他们的职业生涯一直并行发展。
Their careers have followed ___parallel paths over the years.
