However, owing to complexity of social life, evidence or evidentiary materials may be lost or cant be collected in future, so it is necessary to establish the system of conservation of evidence.

但由于社会生活的复杂性，证据或证据材料可能会灭失或以后难以取得，这就使证据保全成为必需。

youdao

However, owing to complexity of social life, evidence or evidentiary materials may be lost or cant be collected in future, so it is necessary to establish the system of conservation of evidence.

但由于社会生活的复杂性，证据或证据材料可能会灭失或以后难以取得，这就使证据保全成为必需。

youdao