Radical 103 疋 stands for clothing or bales of cloth. In the Hanzi-Trainer, it is used synonymously with the correct 正, because it seems helpful for the explanations and the interpretation clothing/cloth bale would be in conflict with other radicals.
Tip: Go to the radicals that are contained in this character and learn all the characters with this radical systematically!
Vocabulary
延长
yán cháng
to prolong, to extend, to delay
1062
延长
yán cháng
1962
延迟
yán chí
to delay; to postpone; to keep putting sth off; to procrastinate
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