此后HSK 5cǐhòuthenceforth, henceforth, since then, thereafter, after this, hereafter Connected through: 此
落后HSK 6luò hòuadj. 发展水平低的(跟“先进”相对), backward, outdated (as opposed to "先进 advanced"); v. 落在别人后面, lag behind, fall behind Connected through: 落
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