Kūnchóng jí jiézhī dòngwù zài shēngtài xìtǒng zhōng shífēn zhòngyào.
Insects and arthropods are highly important in ecosystems.
Tips
usage
Not a lexical word. 昆虫及 is the tail of a longer noun phrase that a word-segmenter mis-grouped. 及 ('and') is a literary conjunction that never stands alone at the end of a phrase. In real text it is always 昆虫及 + something (e.g. 昆虫及其天敌, 昆虫及节肢动物).
