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Strikethrough
Vẽ đường qua chuỗi đã chọn, hoặc nếu con trỏ bên trong từ, qua toàn từ.
From the menu bar:
Choose .
From the tabbed interface:
Choose .
Choose .
From the sidebar:
Choose .
If the cursor is not in a word, the new text that you enter is struck through.