填缝剂, 嵌缝剂
a waterproof filler and sealant, used in building and repairing boats and in household applications.
:
• He applied caulk around the bathtub to prevent leaks.
他在浴缸周围涂了填缝剂以防止漏水。
• The old windows needed fresh caulk to seal them properly.
旧窗户需要新的填缝剂才能正确密封。